ReportWire

Tag: Volcanoes

  • 11 bodies recovered after volcanic eruption in Indonesia, and 22 climbers are still missing

    11 bodies recovered after volcanic eruption in Indonesia, and 22 climbers are still missing

    [ad_1]

    PADANG, Indonesia — The bodies of 11 climbers were recovered Monday after a furious eruption of the Mount Marapi volcano as Indonesian rescuers searched for at least 22 others reportedly missing.

    Mount Marapi in Agam district in West Sumatra province spewed thick columns of ash as high as 3,000 meters (9,800 feet) into the sky in a sudden eruption Sunday and hot ash clouds spread several miles (kilometers). Villages and nearby towns were blanketed by tons of volcanic debris.

    About 75 climbers started their way up the nearly 2,900-meter (9,480-foot) mountain on Saturday and became stranded.

    Eight of those rescued Sunday were rushed to hospitals with burn wounds and one also had a broken limb, said Hari Agustian, an official at the local Search and Rescue Agency in Padang, the provincial capital.

    West Sumatra’s Search and Rescue Agency head Abdul Malik said rescuers on Monday morning found 11 bodies of climbers as they searched for those who still missing and rescued three others.

    “The evacuation process of the bodies and survivors are still ongoing,” he said, adding that rescuers are still searching for 22 climbers reportedly still missing.

    A video on social media on Saturday showed the climbers were evacuated to a shelter, their faces and hair smeared with volcanic dust and rain.

    Two climbing routes were closed after the eruption and residents living on the slopes of Marapi were advised to stay 3 kilometers (1.8 miles) from the crater’s mouth because of potential lava, said Ahmad Rifandi, an official with Indonesia’s Volcanology and Geological Hazard Mitigation Center at the Marapi monitoring post.

    Falling ash blanketed several villages and blocked sunlight, National Disaster Management Agency spokesperson Abdul Muhari said. Authorities distributed masks and urged residents to wear eyeglasses to protect them from volcanic ash, he said.

    About 1,400 people live on Marapi’s slopes in Rubai and Gobah Cumantiang, the nearest villages about 5 to 6 kilometers (3.1 to 3.7 miles) from the peak.

    Marapi’s alert level was maintained at the third-highest of four levels, Abdul Muhari said, and confirmed that authorities had been closely monitoring the volcano after sensors picked up increasing activity in recent weeks.

    Marapi has been active since a January eruption that caused no casualties. It is among more than 120 active volcanoes in Indonesia, which is prone to seismic upheaval due to its location on the Pacific “Ring of Fire,” an arc of volcanoes and fault lines encircling the Pacific Basin.

    [ad_2]

    Source link

  • Indonesia's Marapi volcano erupts, spewing ash plumes and blanketing several villages

    Indonesia's Marapi volcano erupts, spewing ash plumes and blanketing several villages

    [ad_1]

    JAKARTA, Indonesia — Indonesia’s Mount Marapi in West Sumatra province erupted Sunday, spewing white-and-gray ash plumes for more than 3,000 meters (about 9,800 feet) into the air, and hot ash clouds blew several miles to the north, according to Indonesia’s Volcanology and Geological Hazard Mitigation Center.

    There were no casualties, said Ahmad Rifandi, an official at the Marapi monitoring post, adding that villagers were advised to stay 3 kilometers (1.8 miles) from the crater’s mouth and be aware of the danger of potential lava.

    National Disaster Management Agency spokesperson, Abdul Muhari, said several villages were blanketed with falling ash, blocking out the sun in many areas. Authorities distributed face masks and urged residents to wear eyeglasses to protect them from volcanic ashes, he said.

    Marapi’s eruption alert level was maintained at the second-highest level, Abdul Muhari said, and confirmed that authorities have been closely monitoring the volcano after sensors picked up increasing activity in recent weeks.

    Japan’s Meteorological Agency said Sunday it is currently assessing whether there is a possible tsunami in the country because of Marapi’s volcanic activity.

    In case a tsunami reaches Japanese coasts, the earliest possible swelling is expected in the Okinawa region at around 2100 JST (0900GMT), it said.

    The nearly 2,900-meter (about 9,480-foot) mountain has been active since January when it erupted, generating dense ash-and-steam plumes that rose as high as 400 meters (1,300 feet) above the crater. No casualties were reported.

    Marapi is among more than 120 active volcanoes in Indonesia, which is prone to seismic upheaval due to its location on the Pacific “Ring of Fire,” an arc of volcanoes and fault lines encircling the Pacific Basin.

    ___

    Associated Press writer Mari Yamaguchi in Tokyo, Japan contributed to this report.

    [ad_2]

    Source link

  • Eruption of Papua New Guinea volcano subsides, though thick ash is billowing 3 miles into the sky

    Eruption of Papua New Guinea volcano subsides, though thick ash is billowing 3 miles into the sky

    [ad_1]

    CANBERRA, Australia — The eruption of Papua New Guinea’s tallest volcano subsided Tuesday, but thick ash still billowed into the sky and coated roofs and palm trees nearby.

    One of the South Pacific nation’s most active volcanoes, Mount Ulawun erupted on Monday afternoon, spewing ash as high as 15 kilometers (50,000 feet).

    The alert level for the volcano on the northeastern island of New Britain was downgraded by Papua New Guinea’s Geohazards Management Division to Stage 3, which means a moderate-to-strong eruption. It had been at Stage 4 on Monday, indicating a very strong eruption.

    But the volcano, which stands 2,334 meters (7,657 feet) above sea level, remained active and the eruption could continue indefinitely, the division said.

    The Volcanic Ash Advisory Center in Darwin, Australia, reported volcanic smoke rising as high as 15,000 meters (50,000 feet) on Monday.

    The Papua New Guinea division reported the ash plume rising at least 5,000 meters (16,000 feet) on Tuesday before becoming lost in atmospheric cloud.

    The small volcanic particles in ash plumes can be carried long distances by wind and can threaten aviation. A thick plume extended tens of kilometers (miles) to the northwest of Mount Ulawun on Tuesday.

    The Civil Aviation Safety Authority of Papua New Guinea did not immediately respond to an email asking if air travel was being affected. The FlightAware tracking website showed normal activity Tuesday at the nearest large airports, in the national capital Port Moresby and in Honiara, the Solomon Islands capital.

    The nearest large town is Bialla, which is established among palm oil plantations on Ulawun’s slopes 47 kilometers (29 miles) to the southwest, the division said. Hargy Oil Palm Ltd., a company based in Bialla, did not immediately respond to an email request for comment.

    The division said heavy coatings of black ash were causing leaves to droop in palm oil plantations near the volcano and were accumulating on roofs.

    Bialla has a population of more than 13,000 people, according to the World Bank.

    The eruption had prompted Japan to assess the risk of a possible tsunami Monday, but none occurred and Papua New Guinea’s division said the threat was “nil.”

    Papua New Guinea sits on the “Ring of Fire,” the arc of seismic faults around the Pacific Ocean where much of the world’s earthquake and volcanic activity occur. Ulawun has repeatedly erupted since 1700s, and its last major eruption in 2019 led to more than 5,000 people being evacuated.

    The division said there were no known casualties from Ulawun’s history of eruptions.

    But major impacts in terms of population displacement, infrastructure damage and disruption to services were common, the division said.

    [ad_2]

    Source link

  • Eruption of Papua New Guinea volcano subsides, though thick ash is billowing 3 miles into the sky

    Eruption of Papua New Guinea volcano subsides, though thick ash is billowing 3 miles into the sky

    [ad_1]

    CANBERRA, Australia — The eruption of Papua New Guinea’s tallest volcano subsided Tuesday, but thick ash still billowed into the sky and coated roofs and palm trees nearby.

    One of the South Pacific nation’s most active volcanoes, Mount Ulawun erupted on Monday afternoon, spewing ash as high as 15 kilometers (50,000 feet).

    The alert level for the volcano on the northeastern island of New Britain was downgraded by Papua New Guinea’s Geohazards Management Division to Stage 3, which means a moderate-to-strong eruption. It had been at Stage 4 on Monday, indicating a very strong eruption.

    But the volcano, which stands 2,334 meters (7,657 feet) above sea level, remained active and the eruption could continue indefinitely, the division said.

    The Volcanic Ash Advisory Center in Darwin, Australia, reported volcanic smoke rising as high as 15,000 meters (50,000 feet) on Monday.

    The Papua New Guinea division reported the ash plume rising at least 5,000 meters (16,000 feet) on Tuesday before becoming lost in atmospheric cloud.

    The small volcanic particles in ash plumes can be carried long distances by wind and can threaten aviation. A thick plume extended tens of kilometers (miles) to the northwest of Mount Ulawun on Tuesday.

    The Civil Aviation Safety Authority of Papua New Guinea did not immediately respond to an email asking if air travel was being affected. The FlightAware tracking website showed normal activity Tuesday at the nearest large airports, in the national capital Port Moresby and in Honiara, the Solomon Islands capital.

    The nearest large town is Bialla, which is established among palm oil plantations on Ulawun’s slopes 47 kilometers (29 miles) to the southwest, the division said. Hargy Oil Palm Ltd., a company based in Bialla, did not immediately respond to an email request for comment.

    The division said heavy coatings of black ash were causing leaves to droop in palm oil plantations near the volcano and were accumulating on roofs.

    Bialla has a population of more than 13,000 people, according to the World Bank.

    The eruption had prompted Japan to assess the risk of a possible tsunami Monday, but none occurred and Papua New Guinea’s division said the threat was “nil.”

    Papua New Guinea sits on the “Ring of Fire,” the arc of seismic faults around the Pacific Ocean where much of the world’s earthquake and volcanic activity occur. Ulawun has repeatedly erupted since 1700s, and its last major eruption in 2019 led to more than 5,000 people being evacuated.

    The division said there were no known casualties from Ulawun’s history of eruptions.

    But major impacts in terms of population displacement, infrastructure damage and disruption to services were common, the division said.

    [ad_2]

    Source link

  • Residents of Iceland town evacuated over volcano told it will be months before they can go home

    Residents of Iceland town evacuated over volcano told it will be months before they can go home

    [ad_1]

    People in southwest Iceland are on edge, waiting to see whether a volcano rumbling under the Reykjanes peninsula will erupt

    ByThe Associated Press

    November 18, 2023, 9:15 AM

    This image taken with a drone shows cracks on the road next to a church in the town of Grindavik, Iceland, Thursday, Nov. 16, 2023. Residents of a fishing town in southwestern Iceland have left their homes after increasing concern about a potential volcanic eruption caused civil defense authorities to declare a state of emergency in the region. Iceland’s Meteorological Office says police decided to evacuate Grindavik after recent seismic activity in the area moved south toward the town. (AP Photo/Bjorn Steinbekk)

    The Associated Press

    REYKJAVIK, Iceland — People in southwest Iceland remained on edge Saturday, waiting to see whether a volcano rumbling under the Reykjanes Peninsula will erupt. Civil protection authorities said that even if it doesn’t, it’s likely to be months before it is safe for residents evacuated from the danger zone to go home.

    The fishing town of Grindavik was evacuated a week ago as magma – semi-molten rock – rumbled and snaked under the earth amid thousands of tremors. It has left a jagged crack running through the community, thrusting the ground upward by 1 meter (3 feet) or more in places.

    The Icelandic Meteorological Office said there is a “significant likelihood” that an eruption will occur somewhere along the 15-kilometer (9-mile) magma tunnel, with the “prime location” an area north of Grindavik near the Hagafell mountain.

    Grindavik, a town of 3,400, sits on the Reykjanes Peninsula, about 50 kilometers (31 miles) southwest of the capital, Reykjavik and not far from Keflavik Airport, Iceland’s main facility for international flights. The nearby Blue Lagoon geothermal resort, one of Iceland’s top tourist attractions, has been shut at least until the end of November because of the volcano danger.

    Grindavik residents are being allowed to return for five minutes each to rescue valuable possessions and pets.

    A volcanic system on the Reykjanes Peninsula has erupted three times since 2021, after being dormant for 800 years. Previous eruptions occurred in remote valleys without causing damage.

    Iceland sits above a volcanic hot spot in the North Atlantic and averages an eruption every four to five years. The most disruptive in recent times was the 2010 eruption of the Eyjafjallajokull volcano, which spewed huge clouds of ash into the atmosphere and grounded flights across Europe for days because of fears ash could damage airplane engines.

    Scientists say a new eruption would likely produce lava but not an ash cloud.

    [ad_2]

    Source link

  • Huge volcanic eruption expected ‘in hours’ after 1,000 quakes rock Iceland

    Huge volcanic eruption expected ‘in hours’ after 1,000 quakes rock Iceland

    [ad_1]

    RESIDENTS in Iceland have been urged to abandon their homes as a volcano closes in on its fourth eruption in two years.

    Grindavik residents were told to flee to safety by local authorities after 1,000-strong earthquakes shook the Fagradalsfjall volcano into activity earlier this week.

    7

    The Fagradalsfjall volcano in Iceland is on course for its fourth eruption in two yearsCredit: AFP
    The volcano first erupted in 2021

    7

    The volcano first erupted in 2021Credit: Getty
    Cracks have already begun to appear on roads due to volcanic activity near a golf course in the town of Grindavik

    7

    Cracks have already begun to appear on roads due to volcanic activity near a golf course in the town of GrindavikCredit: Reuters
    Iceland has been put into nationwide panic after 1,000-strong earthquakes shook the Fagradalsfjall volcano into activity earlier this week

    7

    Iceland has been put into nationwide panic after 1,000-strong earthquakes shook the Fagradalsfjall volcano into activity earlier this weekCredit: vafri.is

    It’s feared that a catastrophic eruption could be imminent following the seismic activity three miles below the surface of the Reykjanes Peninsula.

    The Icelandic government have since declared a statement of emergency, just two years on from the previous explosion that led to a months-long disaster.

    4,000 residents have already been evacuated from Grindavik, a town 25 miles southwest of the capital Reykjavik, with an eruption even possible within “hours or days”.

    That’s according to Thorvaldur Thordarson, professor of volcanology at the University of Iceland, who told state broadcaster RUV that the chances of an eruption have “increased significantly”.

    The quakes and ground lift caused by the magma intrusion have already caused damage to roads and buildings in Grindavik and its surroundings.

    A large crack also tore up the greens on the Grindavik golf course, an image widely shared on social media networks.

    The Icelandic Meteorological Office, issuing an update on the Fagradalsfjall volcano, said: “There are indications that a considerable amount of magma is moving in an area.

    “The amount of magma involved is significantly more than what was observed in the largest magma intrusions associated with the eruptions at Fagradalsfjall.”

    Scientists have warned that the Fagradalsfjall volcano could produce an eruption even worse than the one in 2021.

    Seismic activity measured just a month before that event saw “very similar” activity patterns to those reported on Saturday.

    The volcano had been dormant for over 800 years prior to its eruption two years ago, which lasted for six months.

    After a few weeks, new fissures formed and new vents started to open while others became inactive.

    At one point, six craters were erupting simultaneously.

    A second eruption then happened on August 3, 2022, before a third took place on July 10, 2023.

    There are now fears that a fourth is on the way after recent rumblings and 1,400 seismic shifts in the last week left experts rattled.

    As a result, a state of emergency is in effect with “mandatory evacuation” of Grindavik and the Svartsengi Power Station.

    Severe weather expert Nahel Belgherze wrote on X (formerly Twitter): “Data from the meteorological office indicate that a magma tunnel has extended under Grindavik.

    “That’s why the town was evacuated and the Civil Defence Level of Danger was declared.

    “It cannot be ruled out that a volcanic fissure may open within the town limits.”

    Some roads have already closed, while the popular Blue Lagoon geothermal spa resort shut down earlier this week as a precaution.

    A magma tunnel that is forming could reach Grindavik, although the Icelandic authority said it’s impossible to tell if and where the magma might break through.

    Iceland has 33 active volcanoes, the highest number in Europe.

    That includes the Eyjafjallajokull volcano which erupted in 2010 and caused enormous disruption to air travel across western Europe.

    While this eruption is not expected to be as big, the UK foreign office has already warned travellers that “no travel can be guaranteed safe”.

    The Fagradalsfjall volcano has already caused significant damage following a number of earthquakes this week

    7

    The Fagradalsfjall volcano has already caused significant damage following a number of earthquakes this weekCredit: Reuters
    Around 4,000 people from Grindavik have already left their homes after the Icelandic government issued a mandatory evacuation

    7

    Around 4,000 people from Grindavik have already left their homes after the Icelandic government issued a mandatory evacuationCredit: Reuters
    The Fagradalsfjall volcano erupted as recently as July

    7

    The Fagradalsfjall volcano erupted as recently as JulyCredit: AP

    [ad_2]

    Tom Malley

    Source link

  • Iceland evacuates town and raises aviation alert as concerns rise a volcano may erupt

    Iceland evacuates town and raises aviation alert as concerns rise a volcano may erupt

    [ad_1]

    LONDON — Residents of a fishing town in southwestern Iceland left their homes Saturday after increasing concern about a potential volcanic eruption caused civil defense authorities to declare a state of emergency in the region.

    Police decided to evacuate Grindavik after recent seismic activity in the area moved south toward the town and monitoring indicated that a corridor of magma, or semi-molten rock, now extends under the community, Iceland’s Meteorological Office said. The town of 3,400 is on the Reykjanes Peninsula, about 50 kilometers (31 miles) southwest of the capital, Reykjavik.

    “At this stage, it is not possible to determine exactly whether and where magma might reach the surface,” the Meteorological Office said.

    Authorities also raised their aviation alert to orange, indicating an increased risk of a volcanic eruption. Volcanic eruptions pose a serious hazard to aviation because they can spew highly abrasive ash high into the atmosphere, where it can cause jet engines to fail, damage flight control systems and reduce visibility.

    A major eruption in Iceland in 2010 caused widespread disruption to air travel between Europe and North America, costing airlines an estimated $3 billion as they canceled more than 100,000 flights.

    The evacuation comes after the region was shaken by hundreds of small earthquakes every day for more than two weeks as scientists monitor a buildup of magma some 5 kilometers (3.1 miles) underground.

    Concern about a possible eruption increased in the early hours of Thursday when a magnitude 4.8 earthquake hit the area, forcing the internationally known Blue Lagoon geothermal resort to close temporarily.

    The seismic activity started in an area north of Grindavik where there is a network of 2,000-year-old craters, geology professor Pall Einarrson, told Iceland’s RUV. The magma corridor is about 10 kilometers (6.2 miles) long and spreading, he said.

    “The biggest earthquakes originated there, under this old series of craters, but since then it (the magma corridor) has been getting longer, went under the urban area in Grindavík and is heading even further and towards the sea,” he said.

    [ad_2]

    Source link

  • Iceland’s Blue Lagoon spa closes temporarily as earthquakes put area on alert for volcanic eruption

    Iceland’s Blue Lagoon spa closes temporarily as earthquakes put area on alert for volcanic eruption

    [ad_1]

    HUSAVIK, Iceland — The Blue Lagoon geothermal spa — one of Iceland’s biggest tourist attractions — closed temporarily as a swarm of earthquakes put the island nation’s most populated region on alert for a possible volcanic eruption.

    Guests rushed to leave the spa’s hotels in the early hours of Thursday, after they were rattled awake shortly before 1 a.m. by a magnitude 4.8 quake, the strongest to hit the region since the recent wave of seismic activity began on Oct. 25.

    Bjarni Stefansson, a local taxi driver, described a scene of confusion when he arrived at the Retreat Hotel, where lava rocks had fallen on the roadway and the parking lot was jammed with 20 to 30 cabs.

    “There was a panic situation,” Stefansson told The Associated Press. “People thought a volcanic eruption was about to happen.”

    The area around Mount Thorbjorn on the Reykjanes Peninsula has been shaken by hundreds of small earthquakes every day for more than two weeks due to a buildup of volcanic magma some 5 kilometers (3.1 miles) underground. Land in the region has risen by 9 centimeters since Oct. 27, according to the Icelandic Met Office, without showing imminent signs of eruption.

    Scientists are closely monitoring the situation for any indication that the seismic activity is getting closer to the surface, which could be an indication that the magma is breaking through the earth’s crust, the Met Office said.

    “Presently, there are no signs that earthquake activity is becoming shallower,” the agency said on its website. “However, the situation could change quickly, and it is not possible to exclude a scenario involving a lava-producing eruption in the area northwest of Thorbjorn.”

    Iceland, which sits above a volcanic hotspot in the North Atlantic, averages an eruption every four to five years. The most disruptive in recent times was the 2010 eruption of the Eyjafjallajokull volcano, which spewed huge clouds of ash into the atmosphere and led to widespread airspace closures over Europe.

    The Reykjanes Peninsula on Iceland’s southwestern coast is includes a volcanic system that has erupted three times since 2021, after being dormant for 800 years.

    Previous eruptions occurred in remote valleys, without causing damage. While scientists say that is the likely outcome of the current activity, the magma storage chamber currently building up again could erupt less than 3 kilometers (1.8 miles) from the Blue Lagoon.

    In the worst-case scenario, lava would threaten the town of Grindavík and the Blue Lagoon, along with the pipelines channeling hot water to thousands of homes that are heated with geothermal energy.

    “We need to be prepared for the worst,” volcanologist Thorvaldur Thordarson said. “Magnitude 5 earthquakes, such as the one last night, are known to precede eruptions.”

    The Blue Lagoon, where tourists bask in pools of seawater naturally heated deep underground, said it decided to close temporarily due to the night’s “disruption of the guests’ experience” and the prolonged stress on employees.

    The resort will remain closed until Nov. 16, the company said in a statement. It had been criticized for not acting sooner.

    Spokeswoman Helga Arnadottir told the AP that close to 30 guests left the resort following the earthquake, but most belonged to one group traveling together.

    The Met Office reported that the peninsula was shaken by about 1,400 quakes in the 24 hours through midday Thursday.

    At Grindavík, a fishing town of 3,400 people, residents have experienced a series of seismic episodes since the Reykjanes Peninsula began to rumble three years ago. But last night’s quakes were stronger.

    Retired beautician Hildur Gunnarsdóttir, 68, said she spent the night cruising around in her Volkswagen Passat to “get a break from feeling the earthquakes.”

    Gunnarsdottir tracks seismic activity on a phone app called My Earthquake Alerts.

    “I turned off notifications days ago,” she said. “The phone was vibrating constantly.”

    [ad_2]

    Source link

  • New island emerges after undersea volcano erupts off Japan, but experts say it may not last long

    New island emerges after undersea volcano erupts off Japan, but experts say it may not last long

    [ad_1]

    TOKYO — An undersea volcano erupted off Japan three weeks ago, providing a rare view of the birth of a tiny new island, but experts say it may not last very long.

    The unnamed undersea volcano, located about 1 kilometer (half a mile) off the southern coast of Iwo Jima, which Japan calls Ioto, started its latest series of eruptions on Oct. 21.

    Within 10 days, volcanic ash and rocks piled up on the shallow seabed, its tip rising above the sea surface. By early November, it became a new island about 100 meters (328 feet) in diameter and as high as 20 meters (66 feet) above the sea, according to Yuji Usui, an analyst in the Japan Meteorological Agency’s volcanic division.

    Volcanic activity has increased near Iwo Jima and similar undersea eruptions have occurred in recent years, but the formation of a new island is a significant development, Usui said.

    Volcanic activity at the site has since subsided, and the newly formed island has somewhat shrunk because its “crumbly” formation is easily washed away by waves, Usui said.

    He said experts are still analyzing the development, including details of the deposits. The new island could survive longer if it is made of lava or something more durable than volcanic rocks such as pumice.

    “We just have to see the development,” he said. “But the island may not last very long.”

    Undersea volcanos and seismic activities have formed new islands in the past.

    In 2013, an eruption at Nishinoshima in the Pacific Ocean south of Tokyo led to the formation of a new island, which kept growing during a decade-long eruption of the volcano.

    Also in 2013, a small island surfaced from the seabed after a massive 7.7-magnitude earthquake in Pakistan. In 2015, a new island was formed as a result of a month-long eruption of a submarine volcano off the coast of Tonga.

    Of about 1,500 active volcanos in the world, 111 are in Japan, which sits on the so-called Pacific “ring of fire,” according to the Japan Meteorological Agency.

    Iwo Jima was the site of some of the fiercest fighting of World War II, and the photograph taken by AP photographer Joe Rosenthal of the flag-raising atop the island’s Mount Suribachi on Feb. 23, 1945, came to symbolize the Pacific War and the valor of the United States Marines.

    [ad_2]

    Source link

  • Volcanic eruptions create brand new island off the coast of Japan

    Volcanic eruptions create brand new island off the coast of Japan

    [ad_1]

    ERUPTIONS from an underwater volcano have created a new island.

    Magma started spewing off the coast of Japan last summer — the first eruptions in the region for a millennium.

    2

    Magma spewing off the coast of Japan has seen a new isle emerge off Iwoto, south of TokyoCredit: Getty
    Officials issued warnings about smoke and large ash deposits as the eruptions continue

    2

    Officials issued warnings about smoke and large ash deposits as the eruptions continueCredit: Getty

    It has seen a new isle emerge off Iwoto, formerly known as Iwojima, located south of Tokyo.

    Iwojima was the site of a major battle in World War II.

    New islands have been confirmed in the area before, but all of them submerge within months due to the harsh sea conditions.

    This new islet is the first in the region since 1986.

    Officials issued warnings about smoke and large ash deposits as the eruptions continue.

    [ad_2]

    Michael Shersby

    Source link

  • A string of volcanic tremors raises fears of mass evacuations in Italy

    A string of volcanic tremors raises fears of mass evacuations in Italy

    [ad_1]

    ROME — Hundreds of small tremors have shaken a densely populated volcanic area west of the Italian city of Naples in recent weeks, pushing the government to quickly redraft mass evacuation plans, even though experts don’t see an imminent risk of eruption.

    In the latest of a long string of tremors, a 4.0-magnitude earthquake hit the region of Campi Flegrei (Phlegraean Fields) Monday. The region is home to a caldera, a cauldron-shaped depression left behind by the eruption of a very large volcano.

    The one in Campi Flegri is the largest in Europe and last erupted in 1538. A new explosion would put half a million inhabitants at risk.

    Monday’s tremor followed a 4.2-magnitude quake recorded last week, the strongest in the area for 40 years, according to the National Institute of Geophysics and Volcanology (INGV).

    Experts at INGV have warned authorities and residents that tremors could intensify in the near future as seismic activity continues. However, they have clarified that the intensity of the tremors doesn’t imply an increased or imminent risk of a new eruption.

    In a study published in June, a team of scientists at INGV raised the possibility that the caldera’s movements could rupture its crust. However, the study stressed there are currently no concrete reasons to anticipate a traditional volcanic eruption involving lava outflow.

    ’The seismic activity has been intensifying for months. We have observed over 3,000 tremors since the start of 2023,” Gianfilippo De Astis, senior researcher at INGV, told The Associated Press on Tuesday. “Only 65, however, were above a 2.0 magnitude.”

    De Astis noted that these phenomena in the Campi Flegrei area – known as “bradyseism” — have been going on for thousands of years, involving a “cyclical process of rising and falling of the level of ground,” which has been widely observed and measured.

    The Campi Flegrei area extends west from the outskirts of Naples to the Tyrrhenian Sea. About a third is partially submerged beneath the Bay of Pozzuoli, while the remaining two-thirds are home to about 400,000 people.

    The city of Naples is surrounded by volcanoes on both sides: Campi Flegrei to the west, and Mount Vesuvius to the east. Vesuvius is known around the world for having destroyed the ancient cities of Pompeii and Herculaneum when it erupted in 79 AD.

    The recent string of tremors caused no damage or injuries, but raised fresh worries over the impact of an emergency evacuation of thousands of people, putting pressure on local authorities and the far-right government headed by Premier Giorgia Meloni.

    Experts have advised Naples city council to conduct safety checks on hospitals, schools and public buildings.

    Civil protection minister Nello Musumeci said on Tuesday that the government has accelerated the drafting of “exodus plans in the event of an emergency,” which should be discussed at the next cabinet meeting.

    According to the evacuation plans in place, once the alert level has been reached, hundreds of thousands of people living in the most dangerous areas are to be transferred to other Italian regions.

    But, in a 2022 study published by the National Research Council (CNR), a group of economists estimated that an immediate evacuation of the whole Campi Flegrei area – as described by the emergency plans — would cost about 30 billion euros a year, with a negative impact on Italy’s gross domestic product of around 1%.

    The risk of a volcanic eruption in the whole Southern Campania region – which includes Naples – would affect about three million people, situated in an area of about 15-20 kilometers from a possible eruption, the study says.

    “No doubt that the plans need to be updated, but that’s a complex issue,” De Astis said in a telephone interview. “For sure, escape routes have to be enlarged to allow a quicker exodus. The government should definitely act on the infrastructure side.”

    But the “psychological factors” are much more unpredictable, he added.

    “We have historical experiences of eruptions where citizens refused to leave their homes and preferred to stay and eventually die there. What are we supposed to do in that case?”

    [ad_2]

    Source link

  • A string of volcanic tremors raises fears of mass evacuations in Italy

    A string of volcanic tremors raises fears of mass evacuations in Italy

    [ad_1]

    ROME — Hundreds of small tremors have shaken a densely populated volcanic area west of the Italian city of Naples in recent weeks, pushing the government to quickly redraft mass evacuation plans, even though experts don’t see an imminent risk of eruption.

    In the latest of a long string of tremors, a 4.0-magnitude earthquake hit the region of Campi Flegrei (Phlegraean Fields) Monday. The region is home to a caldera, a cauldron-shaped depression left behind by the eruption of a very large volcano.

    The one in Campi Flegri is the largest in Europe and last erupted in 1538. A new explosion would put half a million inhabitants at risk.

    Monday’s tremor followed a 4.2-magnitude quake recorded last week, the strongest in the area for 40 years, according to the National Institute of Geophysics and Volcanology (INGV).

    Experts at INGV have warned authorities and residents that tremors could intensify in the near future as seismic activity continues. However, they have clarified that the intensity of the tremors doesn’t imply an increased or imminent risk of a new eruption.

    In a study published in June, a team of scientists at INGV raised the possibility that the caldera’s movements could rupture its crust. However, the study stressed there are currently no concrete reasons to anticipate a traditional volcanic eruption involving lava outflow.

    ’The seismic activity has been intensifying for months. We have observed over 3,000 tremors since the start of 2023,” Gianfilippo De Astis, senior researcher at INGV, told The Associated Press on Tuesday. “Only 65, however, were above a 2.0 magnitude.”

    De Astis noted that these phenomena in the Campi Flegrei area – known as “bradyseism” — have been going on for thousands of years, involving a “cyclical process of rising and falling of the level of ground,” which has been widely observed and measured.

    The Campi Flegrei area extends west from the outskirts of Naples to the Tyrrhenian Sea. About a third is partially submerged beneath the Bay of Pozzuoli, while the remaining two-thirds are home to about 400,000 people.

    The city of Naples is surrounded by volcanoes on both sides: Campi Flegrei to the west, and Mount Vesuvius to the east. Vesuvius is known around the world for having destroyed the ancient cities of Pompeii and Herculaneum when it erupted in 79 AD.

    The recent string of tremors caused no damage or injuries, but raised fresh worries over the impact of an emergency evacuation of thousands of people, putting pressure on local authorities and the far-right government headed by Premier Giorgia Meloni.

    Experts have advised Naples city council to conduct safety checks on hospitals, schools and public buildings.

    Civil protection minister Nello Musumeci said on Tuesday that the government has accelerated the drafting of “exodus plans in the event of an emergency,” which should be discussed at the next cabinet meeting.

    According to the evacuation plans in place, once the alert level has been reached, hundreds of thousands of people living in the most dangerous areas are to be transferred to other Italian regions.

    But, in a 2022 study published by the National Research Council (CNR), a group of economists estimated that an immediate evacuation of the whole Campi Flegrei area – as described by the emergency plans — would cost about 30 billion euros a year, with a negative impact on Italy’s gross domestic product of around 1%.

    The risk of a volcanic eruption in the whole Southern Campania region – which includes Naples – would affect about three million people, situated in an area of about 15-20 kilometers from a possible eruption, the study says.

    “No doubt that the plans need to be updated, but that’s a complex issue,” De Astis said in a telephone interview. “For sure, escape routes have to be enlarged to allow a quicker exodus. The government should definitely act on the infrastructure side.”

    But the “psychological factors” are much more unpredictable, he added.

    “We have historical experiences of eruptions where citizens refused to leave their homes and preferred to stay and eventually die there. What are we supposed to do in that case?”

    [ad_2]

    Source link

  • Hawaii volcano Kilauea erupts after nearly two months of quiet

    Hawaii volcano Kilauea erupts after nearly two months of quiet

    [ad_1]

    Kilauea, one of the most active volcanoes in the world, began erupting Sunday after a two-month pause, displaying glowing lava that is a safe distance from people and structures in a national park on the Big Island

    ByThe Associated Press

    September 10, 2023, 10:20 PM

    In this screen grab from webcam video provided by the U.S. Geological Survey, Kilauea, one of the most active volcanoes in the world, erupts in Hawaii, Sunday, Sept. 10, 2023. (U.S. Geological Survey via AP)

    The Associated Press

    HONOLULU — Kilauea, one of the most active volcanoes in the world, began erupting Sunday after a two-month pause, displaying glowing lava that is a safe distance from people and structures in a national park on the Big Island.

    The Hawaii Volcano Observatory said the eruption was observed in the afternoon at the summit of Kilauea.

    The observatory said gases released by the eruption will cause volcanic smog downwind of Kilauea. People living near the park should try to avoid volcanic particles spewed into the air by the eruption, the observatory said.

    The volcano’s alert level was raised to warning status and the aviation color code went to red as scientists evaluate the eruption and associated hazards.

    In June, Kilauea erupted for several weeks, displaying fountains of red lava without threatening any communities or structures. Crowds of people flocked to the Big Island’s Hawaii Volcanoes National Park, which offered safe views of the lava.

    Kilauea, Hawaii’s second largest volcano, erupted from September 2021 until last December. A 2018 Kilauea eruption destroyed more than 700 homes.

    [ad_2]

    Source link

  • Ancient Impacts May Have Fueled Venus Volcanism

    Ancient Impacts May Have Fueled Venus Volcanism

    [ad_1]

    Newswise — SAN ANTONIO —July 20, 2023 —A Southwest Research Institute-led team has modeled the early impact history of Venus to explain how Earth’s sister planet has maintained a youthful surface despite lacking plate tectonics. The team compared the early collision histories of the two bodies and determined that Venus likely experienced higher-speed, higher-energy impacts creating a superheated core that promoted extended volcanism and resurfaced the planet.

    “One of the mysteries of the inner solar system is that, despite their similar size and bulk density, Earth and Venus operate in strikingly distinct ways, particularly affecting the processes that move materials through a planet,” said Dr. Simone Marchi, lead author of a new paper about these findings in Nature Astronomy.

    The Earth’s shifting plates continuously reshape its surface as chunks of the crust collides to form mountains ranges, and in places promote volcanism. Venus has more volcanos than any other planet in the solar system but has only one continuous plate for its surface. More than 80,000 volcanos — 60 times more than Earth — have played a major role in renewing the planet’s surface through floods of lava, which may continue to this day. Previous simulations struggled to create scenarios to support this level of volcanism.

    “Our latest models show that long-lived volcanism driven by early, energetic collisions on Venus offer a compelling explanation for its young surface age,” said Professor Jun Korenaga, a co-author from Yale University. “This massive volcanic activity is fueled by a superheated core, resulting in vigorous internal melting.”

    Earth and Venus formed in the same neighborhood of the solar system as solid materials collided with each other and gradually combined to form the two rocky planets. The slight differences in the planets’ distances from the Sun changed their impact histories, particularly the number and outcome of these events. These differences arise because Venus is closer to the Sun and moves faster around it, energizing impact conditions. In addition, the tail of collisional growth is typically dominated by impactors originating from beyond Earth’s orbit that require higher orbital eccentricities to collide with Venus rather than Earth, resulting in more powerful impacts.

    “Higher impact velocities melt more silicate, melting as much as 82% of Venus’ mantle,” said Dr. Raluca Rufu, a Sagan Fellow and SwRI co-author. “This produces a mixed mantle of molten materials redistributed globally and a superheated core.”

    If impacts on Venus had significantly higher velocity than on Earth, a few large impacts could have had drastically different outcomes, with important implications for the subsequent geophysical evolution. The multidisciplinary team combined expertise in large-scale collision modeling and geodynamic processes to assess the consequences of those collisions for the long-term evolution of Venus.

    “Venus internal conditions are not well known, and before considering the role of energetic impacts, geodynamical models required special conditions to achieve the massive volcanism we see at Venus,” Korenaga said. “Once you input energetic impact scenarios into the model, it easily comes up with the extensive and extended volcanism without really tweaking the parameters.”

    And the timing of this new explanation is serendipitous. In 2021, NASA committed to two new Venus missions, VERITAS and DAVINCI, while the European Space Agency is planning one called EnVision.

    “Interest in Venus is high right now,” Marchi said. “These findings will have synergy with the upcoming missions, and the mission data could help confirm the findings.”  

    The paper “Long-lived volcanic resurfacing of Venus driven by early collisions” appears in Nature Astronomy and can be accessed at https://doi.org/10.1038/s41550-023-02037-2.

    [ad_2]

    Southwest Research Institute

    Source link

  • Alaska volcano spews ash cloud high enough to draw weather service warning for pilots

    Alaska volcano spews ash cloud high enough to draw weather service warning for pilots

    [ad_1]

    An erupting volcano in Alaska’s Aleutian Islands sent up a cloud of ash Friday, prompting the National Weather Service to issue an inflight warning to pilots

    This image courtesy of Alaska Volcano Observatory/U.S. Geological Survey shows a low-level ash plume from the Shishaldin Volcano captured in an Alaska Volcano Observatory webcam located NW of Mt. Shishaldin at 10:33 AM AKDT on Friday, July 14, 2023, in Alaska. (Matt Loewen/Alaska Volcano Observatory/U.S. Geological Survey via AP)

    The Associated Press

    ANCHORAGE, Alaska — An erupting volcano in Alaska’s Aleutian Islands sent a towering cloud of ash into the air Friday, prompting the National Weather Service to issue an inflight warning to pilots.

    The Shishaldin Volcano began erupting July 11, according to the Alaska Volcano Observatory. A U.S. Coast Guard overflight confirmed lava erupted the same day within the summit crater.

    A significant explosion at 1:09 a.m. Friday produced an ash cloud that reached up to 40,000 feet (12,192 meters) and drifted south over the Pacific Ocean. A second smaller explosion at 7:10 a.m. Friday reached about 15,000 feet (4,572 meters).

    The National Weather Service issued a inflight weather advisory due to the drifting ash cloud.

    Volcanic ash is angular and sharp and has been used as an industrial abrasive. The powdered rock can cause a jet engine to shut down.

    The volcano is 679 miles (1,093 kilometers) southwest of Anchorage near the center of Unimak Island, the largest island in the Aleutians. False Pass, a village of 40 people, is on the island’s east side.

    The volcano is a symmetrical cone that is 10 miles (16 kilometers) in diameter at its base. It rises to 9,373 feet (2,857 meters) and is the highest peak in the Aleutians.

    Shishaldin is one of the most active volcanoes in the Aleutian volcanic arc. Most eruptions are small. An event in 1999 spewed an ash column that reached 45,000 feet (13,716 meters).

    The volcano is monitored with seismic and infrasound sensors, satellite data, a web camera and distant infrasound and lightning networks.

    [ad_2]

    Source link

  • Iceland warns tourists to stay away from volcano erupting with lava and noxious gases

    Iceland warns tourists to stay away from volcano erupting with lava and noxious gases

    [ad_1]

    Authorities in Iceland have warned tourists and other spectators to stay away from a newly erupting volcano that is spewing lava and noxious gases from a fissure in the country’s southwest

    A person walks near lava emerging from a fissure of the Fagradalsfjall volcano near the Litli-Hrútur mountain, some 30 kilometers (19 miles) southwest of Reykjavik, Iceland, Monday July 10, 2023. Authorities in Iceland on Tuesday warned spectators to stay away from a newly erupting volcano that is spewing lava and noxious gases from a fissure in the country’s southwest. (AP Photo/Marco Di Marco)

    The Associated Press

    REYKJAVIK, Iceland — Authorities in Iceland on Tuesday warned tourists and other spectators to stay away from a newly erupting volcano that is spewing lava and noxious gases from a fissure in the country’s southwest.

    The eruption began Monday afternoon after thousands of earthquakes in the area, meteorological authorities said. This one comes 11 months after its last eruption officially ended. The eruption is in an uninhabited valley near the Litli-Hrútur mountain, some 30 kilometers (19 miles) southwest of the capital, Reykjavik.

    The area, known broadly as Fagradalsfjall volcano, erupted in 2021 and 2022 without causing damage or disruptions to flights, despite being near Keflavik Airport, Iceland’s international air traffic hub. The airport remained open on Tuesday.

    The Icelandic Meteorological Office said the eruption was initially more explosive than the previous two. Aerial footage showed streams of orange molten lava and clouds of gases spewing from a snaking fissure about 900 meters (half a mile) long.

    “Gas pollution is high around the eruption and dangerous,” the Met Office said. “Travelers are advised not to enter the area until responders have had a chance to evaluate conditions.”

    By Tuesday morning, the fissure and the volume of the eruption had shrunk, scientists said.

    “This has become a small eruption, which is very good news,” University of Iceland geophysics professor Magnús Tumi Guðmundsson told national broadcaster RUV.

    He said the eruption could “certainly last a long time, but luckily we’re not looking at a continuation of what we saw in the first few hours.”

    A 2021 eruption in the same area produced spectacular lava flows for several months. Hundreds of thousands of people flocked to see the sight.

    Iceland, which sits above a volcanic hot spot in the North Atlantic, averages an eruption every four to five years.

    The most disruptive in recent times was the 2010 eruption of the Eyjafjallajokull volcano, which sent huge clouds of ash into the atmosphere and led to widespread airspace closures over Europe. More than 100,000 flights were grounded, stranding millions of international travelers and halting air travel for days because of concerns the ash could damage jet engines.

    [ad_2]

    Source link

  • Tourists received no safety warnings before New Zealand volcano eruption killed 22, prosecutor says

    Tourists received no safety warnings before New Zealand volcano eruption killed 22, prosecutor says

    [ad_1]

    Tourists received no health and safety warnings before they landed on New Zealand’s most active volcano ahead of a 2019 eruption that killed 22 people, a prosecutor said Tuesday.

    There were 47 people on White Island, the tip of an undersea volcano also known by its Indigenous Maori name, Whakaari, when superheated gases erupted on Dec. 9. Most of the 25 people who survived were severely burned.

    The island’s owners, brothers Andrew, James and Peter Buttle; their company Whakaari Management Ltd.; and tour operators ID Tours NZ Ltd. and Tauranga Tourism Services Ltd. went on trial Tuesday in Auckland District Court for allegedly failing to adequately protect tourists and staff.

    Prosecutor Kristy McDonald said in opening the prosecution case that the eruption at the popular tourist destination was not predictable but was foreseeable. The 20 tourists and two tour guides who died were given no warning of the risks, she said.

    “They were not given the opportunity to make any informed decision about whether they wanted to take the risk of walking into the crater of an active and unpredictable volcano that had erupted as recently as 2016,” McDonald said.

    “The business of tourism on Whakaari was a risky business. It involved tours to an active volcano, taking people to the heart of the crater in circumstances where no one could predict when an eruption might occur, and if an eruption did occur, those on Whakaari were likely to die or suffer very serious injury. And tragically, that risk was realized,” she said.

    Of those killed, 14 were Australians, five were Americans, two were New Zealanders and one was German.

    McDonald said the company that owned the volcano — Whakaari Management Ltd., which she called WML — failed to understand the risk, failed to consult with tour operators on the hazards, failed to ensure appropriate personal protective equipment was provided to tourists and staff, and failed to provide an adequate means of evacuation.

    The company left tour operators to monitor the changing risk. An eruption on April 27, 2016, occurred at night without warning when no one was on the island. That should have prompted the owner to review the risk assessment, McDonald said.

    The volcano had gone through 42 “eruptive periods” since colonial records began in 1826, McDonald said.

    After the 2016 eruption, New Zealand geology agency GNS Science said its staff were banned from visiting the crater floor until further notice because of the “heightened state of volcanic unrest,” McDonald said.

    Despite knowing this, several operators continued taking tourists to the crater from the day after the eruption, she said.

    WHL, which made a profit of 1 million New Zealand dollars ($621,000) a year from tourists, could have paid GNS for a formal risk assessment but did not, she said.

    McDonald said warning tourists of the dangers “would obviously not be good for business.”

    “However, profit should never come before safety,” she said.

    She blamed the Buttle brothers for the WML’s failure to assess the volcano danger.

    “The Buttles knew they could obtain expert advice from GNS for a fee. They chose not to,” McDonald said. “The Buttles failed to do one of the most fundamental things required of them as officers. They failed to ensure that their company had and used sufficient resources to understand the risk of its business and to implement controls to manage that risk.”

    ID Tours NZ and Tauranga Services failed to ensure 38 passengers, who had traveled from Australia aboard the Royal Caribbean cruise ship Ovation of the Seas and were on the volcano when it erupted, had been properly warned of the risk, she said.

    Those 38 people “did not receive any health and safety information about volcanic activity or volcanic risk prior to the tour,” McDonald said.

    If WML was going to allow tourists to visit the volcano, the company should have ensured visitors were equipped with adequate personal protective equipment and that emergency evacuation options were provided, McDonald said.

    The court was shown video and photographs taken in the moments before and during the eruption.

    McDonald said the only way off the island other than aircraft was a 90-year-old jetty that was too small for tourist boats to dock at. Survivors had to climb down a ladder to inflatable boats.

    “A number of victims were badly burnt and this transfer was very painful,” McDonald said. “Some of them were losing the skin off their hands as they attempted to climb down the ladder. Some were unable to use the ladder and were pushed or fell into the inflatable boats.”

    Defense lawyer James Cairney, representing WML and the Buttle brothers, questioned whether “one director can be liable for one failing by a company when there are multiple directors.”

    David Neutze, the lawyer for ID Tours, said Royal Caribbean had probably breached safety standards but the New Zealand regulator WorkSafe had no jurisdiction over the Florida-based company.

    ID Tours’ role was as a ground handler taking passengers from the cruise ship and as a booking agent for volcano tours.

    “ID, we say, did not have a reasonably practical ability to cancel tours, to control the provision of health and safety information to passengers, to verify its accuracy or its adequacy or appropriateness of any health or safety information provided,” Neutze said. “Those functions were part of the work activity of others, principally Royal Caribbean, which sold the tours, and White Island Tours, which provided the tours.”

    White Island Tours pleaded guilty in June to safety breaches relating to the eruption. All but one of the 22 dead were involved with that tour operator.

    Three helicopter tour operators pleaded guilty last week to safety breaches.

    Each of the companies faces a maximum fine of NZ$1.5 million ($927,000). Each of the brothers charged faces a maximum fine of NZ$300,000 ($185,000).

    The trial being heard by Judge Evangelos Thomas without a jury will resume Wednesday. It is scheduled to run for 16 weeks.

    [ad_2]

    Source link

  • Tourists received no safety warnings before New Zealand volcano eruption killed 22, prosecutor says

    Tourists received no safety warnings before New Zealand volcano eruption killed 22, prosecutor says

    [ad_1]

    Tourists received no health and safety warnings before they landed on New Zealand’s most active volcano ahead of a 2019 eruption that killed 22 people, a prosecutor said Tuesday.

    There were 47 people on White Island, the tip of an undersea volcano also known by its Indigenous Maori name Whakaari, when superheated steam erupted on Dec. 9. Most of the 25 people who survived were severely burned.

    The island’s owners, brothers Andrew, James and Peter Buttle, their company Whakaari Management Ltd. and tour operators I.D. Tours NZ Ltd. and Tauranga Tourism Services Ltd. went on trial Tuesday in Auckland District Court for allegedly failing to adequately protect tourists and staff.

    Prosecutor Kristy McDonald said in opening the prosecution case that the eruption at the popular tourist destination was not predictable but was foreseeable. The 20 tourists and two tour guides who died were given no warning of the risks, she said.

    “They were not given the opportunity to make any informed decision about whether they wanted to take the risk of walking into the crater of an active and unpredictable volcano that had erupted as recently as 2016,” McDonald said.

    “The business of tourism on Whakaari was a risky business. It involved tours to an active volcano, taking people to the heart of the crater in circumstances where no one could predict when an erupting might occur, and if an eruption did occur, those on Whakaari were likely to die or suffer very serious injury. And tragically, that risk was realized,” she added.

    Of those killed, 14 were Australians, five were Americans, two were New Zealanders and one was a German.

    McDonald said the company that owned the volcano failed to understand the risk, failed to consult with tour operators on the hazards, failed to ensure appropriate personal protective equipment was provided to tourists and staff and failed to provide an adequate means of evacuation.

    The company left tour operators to monitor the changing risk. An eruption on April 27, 2016, occurred at night without warning when no one was on the island. That should have prompted the owner to review the risk assessment, McDonald said.

    The volcano had gone through 42 “eruptive periods” since colonial records began in 1826, McDonald said.

    After the 2016 eruption, New Zealand’s geology agency GNS Science said its staff were banned from visiting the crater floor until further notice because of the “heightened state of volcanic unrest,” McDonald said.

    Despite knowing this, several operators continued taking tourists to the crater from the day after the eruption, she said.

    McDonald said warning tourists of the dangers “would obviously not be good for business.”

    “However, profit should never come before safety,” she said.

    A honeymooning U.S. couple who survived the eruption with severe burns, Matt Urey and Lauren Barham of Richmond, Virginia, are listed as the first witnesses to testify.

    They were among 38 tourists who had traveled from Australia aboard the Royal Caribbean cruise ship Ovation of the Seas and were on the volcano when it erupted.

    Three helicopter tour operators pleaded guilty last week to safety breaches.

    Each of the companies faces a maximum fine of 1.5 million New Zealand dollars ($927,000). Each of the brothers charged faces a maximum fine of 300,000 New Zealand dollars ($185,000).

    The trial being heard by Judge Evangelos Thomas without a jury is scheduled to run for 16 weeks.

    [ad_2]

    Source link

  • Volcanic Eruptions’ Climate Impact Underestimated

    Volcanic Eruptions’ Climate Impact Underestimated

    [ad_1]

    Newswise — Researchers have found that the cooling effect that volcanic eruptions have on Earth’s surface temperature is likely underestimated by a factor of two, and potentially as much as a factor of four, in standard climate projections.

    While this effect is far from enough to offset the effects of global temperature rise caused by human activity, the researchers, led by the University of Cambridge, say that small-magnitude eruptions are responsible for as much as half of all the sulphur gases emitted into the upper atmosphere by volcanoes.

    The results, reported in the journal Geophysical Research Letters, suggest that improving the representation of volcanic eruptions of all magnitudes will in turn make climate projections more robust.

    Where and when a volcano erupts is not something that humans can control, but volcanoes do play an important role in the global climate system. When volcanoes erupt, they can spew sulphur gases into the upper atmosphere, which forms tiny particles called aerosols that reflect sunlight back into space. For very large eruptions, such as Mount Pinatubo in 1991, the volume of volcanic aerosols is so large that it single-handedly cause global temperatures to drop.

    However, these large eruptions only happen a handful of times per century – most small-magnitude eruptions happen every year or two.  

    “Compared with the greenhouse gases emitted by human activity, the effect that volcanoes have on the global climate is relatively minor, but it’s important that we include them in climate models, in order to accurately assess temperature changes in future,” said first author May Chim, a PhD candidate in the Yusuf Hamied Department of Chemistry.

    Standard climate projections, such as the Intergovernmental Panel on Climate Change (IPCC) Sixth Assessment Report, assume that explosive volcanic activity over 2015–2100 will be at the same level as the 1850–2014 period, and overlook the effects of small-magnitude eruptions.

    “These projections mostly rely on ice cores to estimate how volcanoes might affect the climate, but smaller eruptions are too small to be detected in ice-core records,” said Chim. “We wanted to make a better use of satellite data to fill the gap and account for eruptions of all magnitudes.”

    Using the latest ice-core and satellite records, Chim and her colleagues from the University of Exeter, the German Aerospace Center (DLR), the Ludwig-Maximilians University of Munich, the Durham University, and the UK Met Office, generated 1000 different scenarios of future volcanic activity. They selected scenarios representing lower, median and high levels of volcanic activity, and then performed climate simulations using the UK Earth System Model.

    Their simulations show that the impacts of volcanic eruptions on climate, including global surface temperature, sea level and sea ice extent, are underestimated because current climate projections largely underestimate the plausible future level of volcanic activity.

    For the median future scenario, they found that the effect of volcanoes on the atmosphere, known as volcanic forcing, is being underestimated in climate projections by as much as 50%, due in large part to the effect of small-magnitude eruptions.

    “We found that not only is volcanic forcing being underestimated, but small-magnitude eruptions are actually responsible for as much as half of the volcanic forcing,” said Chim. “These small-magnitude eruptions may not have a measurable effect individually, but collectively, their effect is significant.

    “I was surprised to see just how important these small-magnitude eruptions are – we knew they had an effect, but we didn’t know it was so large.”

    Although the cooling effect of volcanoes is being underestimated in climate projections, the researchers stress that it does not compare with human-generated carbon emissions.

    “Volcanic aerosols in the upper atmosphere typically stay in the atmosphere for a year or two, whereas carbon dioxide stays in the atmosphere for much, much longer,” said Chim. “Even if we had a period of extraordinarily high volcanic activity, our simulations show that it wouldn’t be enough to stop global warming. It’s like a passing cloud on a hot, sunny day: the cooling effect is only temporary.”

    The researchers say that fully accounting for the effect of volcanoes can help make climate projections more robust. They are now using their simulations to investigate whether future volcanic activity could threaten the recovery of the Antarctic ozone hole, and in turn maintain relatively high level of harmful ultraviolet radiation at the Earth’s surface.

    The research was supported in part by the Croucher Foundation and The Cambridge Commonwealth, European & International Trust, the European Union, and the Natural Environment Research Council (NERC), part of UK Research and Innovation (UKRI).

    [ad_2]

    University of Cambridge

    Source link

  • As tourists flock to view volcano’s latest eruption, Hawaii urges mindfulness, respect

    As tourists flock to view volcano’s latest eruption, Hawaii urges mindfulness, respect

    [ad_1]

    HONOLULU (AP) — Hawaii tourism officials urged tourists to be respectful when flocking to a national park on the Big Island to get a glimpse of the latest eruption of Kilauea, one of the world’s most active volcanoes.

    Kilauea, Hawaii’s second-largest volcano, began erupting Wednesday after a three-month pause.

    The U.S. Geological Survey’s Hawaiian Volcano Observatory on Thursday lowered Kilauea’s alert level from warning to watch because the rate of lava input declined, and no infrastructure is threatened. The eruption activity is confined to the closed area of Hawaii Volcanoes National Park.

    “Out of respect for the cultural and spiritual significance of a volcanic eruption and the crater area for many kamaʻāina, the Hawaiʻi Tourism Authority urges mindfulness when planning a visit to the volcano,” the agency said in a statement Wednesday night, using a Hawaiian word often used for Hawaii residents.

    For many Native Hawaiians, an eruption of a volcano has a deep yet very personal cultural significance. Some may chant, some may pray to ancestors, and some may honor the moment with hula, or dance. Hawaiians ask that people keep a respectful distance.

    “Don’t just get out your camera and take photos. Stop and be still and take it in,” said Cyrus Johnasen, a spokesperson for Hawaii County who is Hawaiian. “It’s something that you can’t pay for. In that moment, you are one with Hawaii.”

    In recognizing the sacredness of the area, he also urged visitors to not take rocks, refrain from horseplay and leave plants alone.

    “A lot of plants up there are native,” he said. “Just be mindful that you will leave a footprint. The idea is you leave one that’s small as possible.”

    Word of Kilauea’s lava fountains spread quickly, bringing crowds to the park. “Expect major delays and limited parking due to high visitation,” said a warning on the park’s website Thursday.

    There was no exact count available, but officials estimated the first day and night of the eruption brought more than 10,000 people, which is more than triple the number of visitors on a normal day when Kilauea isn’t erupting, park spokesperson Jessica Ferracane said.

    Several thousand viewers were watching the USGS’s livestream showing red pockets of moving lava Thursday morning.

    “We were on social media, and we saw that it was actually going off while we’re here, so we made the drive from the Kona side,” Andrew Choi, visiting with his family from Orange County, California, told the Hawaii Tribune-Herald. “This feels so ridiculously lucky. We’ve never seen anything like this.”

    Park officials suggested visiting at less-crowded times before 9 a.m. or after 9 p.m.

    Scientists expect the eruption to continue and remain confined to the Halemaumau crater in the park.

    Early Wednesday, lava fountains were as high as 200 feet (60 meters) and decreased to 13 feet to 30 feet (4 meters to 9 meters) in the afternoon, according to the observatory.

    “People here on Hawaii Island are getting a spectacular show,” Mayor Mitch Roth said. “And it’s happening in a safe place that was built for people to come view it.”

    [ad_2]

    Source link