Volcanic Activity - Environmental Hazards Newsletter - 12th Mar 2018

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Volcano fires ash 3000m into air

The eruption of a volcano in southern Japan spewed ash 3,000 metres into the air. The authorities warned people not to approach Mount Shinmoedake, which has erupted 29 times, its most active since 2011. No injuries have been reported.
10th Mar 2018 - The Times

Lava flow confirmed at Mt. Shinmoe following eruptions

At around 10:10 a.m. on March 9, a worker from the National Institute of Advanced Industrial Science and Technology involved in an on-site inspection informed the JMA that lava could be seen flowing from the northwest section of the mountain's crater. The agency later confirmed a lava flow, and is investigating its range. The JMA had announced on the same day that eruptions of the volcano, which straddles Miyazaki and Kagoshima prefectures, had stopped at 1:45 a.m., but it seems that lava built up inside the crater subsequently spilled over.
9th Mar 2018 - The Mainichi

Mayon volcano eruption: Rumbling heard for miles as lava explodes 7 times in 24 hours

But the Philippines most active volcano shows no signs of letting up as officials revealed lava continued to flow from 7.19am on Thursday to 6am (local time) today erupting on seven separate periods during the timeframe.
9th Mar 2018 - Express.co.uk

Study: Gunma volcano erupted more frequently than thought

A volcano in Gunma Prefecture that erupted Jan. 23, killing one and injuring 11, likely had many more such events than previously thought, volcanologists said. Researchers with the Geospatial Information Authority of Japan (GSI) and the National Institute of Advanced Industrial Science and Technology (AIST) identified traces of similar eruptions that occurred repeatedly at Mount Moto-Shiranesan, one of the peaks that constitute the Mount Kusatsu-Shiranesan volcano complex. The January eruption formed more than one string of volcanic vents, which stretched a maximum of 500 meters.
9th Mar 2018 - Asahi Shimbun

Shinmoedake volcano in southern Japan erupts, spewing smoke and ash into air

A volcano in southern Japan that appeared in a James Bond film had its biggest eruption in years on Tuesday, shooting smoke and ash thousands of metres into the sky and grounding dozens of flights at a nearby airport, officials said. The Meteorological Agency said the Shinmoedake volcano on Japan’s southernmost main island of Kyushu erupted violently several times, and some lava was rising inside a crater.
7th Mar 2018 - Daily Telegraph Australia

Long-Period Earthquake Swarm Detected Under Volcano

An ongoing long-period earthquake swarm at 5-10 km depth began last night beneath the Kīlauea Volcano caldera, scientists report, noting that “otherwise, seismicity is within normal, background rates, with tremor fluctuations associated with lava lake spattering.” On Tuesday, the USGS Hawaiian Volcano Observatory measured the level of the lava lake at 74 ft. below the floor, which meant excited visitors could catch a glimpse of lava spatter from the Jaggar Overlook inside Hawai‘i Volcanoes National Park.
7th Mar 2018 - Big Island Video News

Kyushu volcano continues to belch ash over wide region

Kyushu’s Mount Shinmoedake remained active March 7 as smoke and fumes rose as high as 3,000 meters from the volcano. The Japan Meteorological Agency is maintaining the alert level at 3, warning people to stay away from the 1,421-meter mountain and cautioning that large rocks may be spat out up to a distance of 3 kilometers. It also said that glasses may break due to vibrations and that wind-borne volcanic debris may be carried over long distances.
7th Mar 2018 - Asahi Shimbun

Japanese volcano erupts, spewing ash

A volcano on Japan's Kyushu island is erupting, sending a plume of ash more than two kms above the crater. It was the first time in about seven years that such a powerful eruption was observed at Mount Shinmoe on the border between the prefectures of Kagoshima and Miyazaki on the southern island, according to the Japan Meteorological Agency.
7th Mar 2018 - The Sydney Morning Herald

Japan's "James Bond" Volcano Erupts In A Spectacular Display Of Fire And Smoke

The volcano sent ash and smoke thousands of meters into the sky, canceling flights and creating unease for local residents. Shinmoedake volcano appeared in the 1967 James Bond movie You Only Live Twice, with Sean Connery as the film's agent 007.
6th Mar 2018 - Forbes

Taupo in the running for the Volcano Cup

Which volcano is the best? Fans of the lava-spewing killers are trying to find out once and for all. Over the past few weeks a knockout competition has been taking place on social media site Twitter, under the hashtag #VolcanoCup. Thousands of geologists, science fans and people who just like things that burn have been voting for their favourite fiery mountains and calderas. New Zealand is represented in the informal competition by Taupo, which last blew around 1800 years ago. The goal is not just to entertain, but educate.
2nd Mar 2018 - Newshub

Hawaii Dumped 1.5 Billion Gallons Of Lava Into Pacific As Volcano Wall Collapses

A rare volcano wall collapse was captured recently on Kīlauea volcano, one of the most active volcanoes in the world. The collapse occurred on February 10th, at 8:21 a.m. local time when a massive chunk of the volcano collapsed. The sudden collapse was on Kīlauea volcano's active East Rift Zone, specifically on the northeast rim of the west pit in Pu’u O’o. This collapse was coincident with subsidence as the adjacent ground fell. Kīlauea volcano is actively monitored by the USGS on the island, looking for evidence of new eruptions and danger to local communities.
28th Feb 2018 - Forbes

Violent blasts from Indonesia's Sinabung volcano

On February 19, 2018, Mount Sinabung volcano, on the Indonesian island of On February 19, 2018, Mount Sinabung volcano, on the Indonesian island of Sumatra, erupted violently, spewing ash at least 16,000 to 23,000 feet (5 to 7 km) into the air. The stratovolcano has been sporadically active since 2010, following four centuries of quiet. According to a report from the Associated Press, the lava dome obliterated a chunk of the peak as it erupted. Plumes of hot gas and ash flowed down the volcano’s summit and spread out in an area about 3 miles (5 km) in diameter. Ash falls were recorded as far away as the town of Lhokseumawe, some 160 miles (260 km) to the north.
21st Feb 2018 - EarthSky

Indonesia issues volcanic ash flight warnings after Mount Sinabung erupts

Indonesia has raised flight warnings around the Mount Sinabung volcano to their highest level after it sent a plume of ash more than 7km (4.4 miles) into the air, turning day into night for people nearby. Areas around the crater of the volcano, located about 1,900km north-west of the capital, Jakarta, on the island of Sumatra have been off-limits for several years because of frequent volcanic activity.
20th Feb 2018 - The Guardian

The Costs Of Waiting For A Volcano To Erupt

Earthquakes began rumbling under Agung volcano on the “Paradise Island” of Bali in Indonesia on August 10, 2017. These small earthquakes drew immediate attention because Mt. Agung, which dominates the island’s landscape, had erupted in 1963, killing more than 1100 people. Was Agung reawakening? Could a major eruption be imminent?
16th Feb 2018 - Forbes

Terrawatch: Montserrat's volcano remains a risk

It is now more than 20 years since Montserrat’s long-dormant volcano had a dramatic return to life. The action began in 1995 and reached a crescendo in 1997, when 19 people lost their lives. Plymouth, the island’s capital, ended up buried in more than 12m (40ft) of mud. Since then an exclusion zone has been imposed over the southern two-thirds of the Caribbean island and the population has dwindled from 12,500 to just 4,500. Sporadic smaller eruptions have occurred in the intervening years, but for the past eight years the volcano has been completely silent, and locals are impatient to return to their homes. So is it safe?
6th Mar 2018 - The Guardian

Montserrat's volcano update: Is the terrifying volcano at risk of imminent eruption?

7th Mar 2018 - Express.co.uk

Volcanic Activity - Environmental Hazards Newsletter - 1st Feb 2018

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Geology Makes the Mayon Volcano Visually Spectacular—And Dangerously Explosive

The Philippine Institute of Volcanology and Seismology raised the alert status for Mount Mayon to a 4 on a scale of 5, which means “hazardous eruption is imminent.” Officials strongly discourage civilians from going within 5 miles of Mayon’s summit.
19th Jan 2018 - Smithsonian

VIDEO: Drone Captures the Activity of the Impressive Turrialba Volcano in Costa Rica

“We visited the peak of the Turrialba Volcano between the month of December 2017 and the first two weeks of January 2018 to work on taking samples of ash expelled recently and carry out measurements of the activity of the active crater. The activity is dominated by an intense degasification of the active crater, with sporadic explosions every 30 minutes to an hour. During this emanations, particles of ashes are released that reach heights of more than 300 meters above the crater. In the field we can clearly see a series of phreatic volcanic deposits, phreatomagmatic –strombolianic (eruptions resulting from interaction between water and magma and mildly explosive), generated since October 2014 and to date. In our visits we observed several explosions of superficial origin, through a camera installed on a drone."
19th Jan 2018 - The Costa Rica Star

Kadovar volcano (Papua New Guinea): eruption continues to be intense

According to the Rabaul Volcano Observatory (RVO), a short lava flow is descending on the island volcano's flank, but it is unclear whether it has reached the ocean. A seismometer has been installed on the island and is detecting ongoing tremor indicating the continued rise of magma. Emissions of sulfur dioxide also remain high, suggesting that magma supply remains significant. How the eruption evolves is impossible to predict, but due to its vicinity to the sea water, the risk of large phreatomagmatic explosions (caused when water gets in contact with magma) and potential tsunamis that could be triggered in this scenario is elevated. It will depend very much on the available amount of eruptible magma still stored inside the volcano's plumbing system.
19th Jan 2018 - Volcano Discovery

Scientist says volcano could erupt in Papua New Guinea soon

Seismic activity beneath a Papua New Guinea volcano could mean that a major eruption was imminent, a scientist said Thursday. Thousands of people have been evacuated from islands surrounding Kadovar Island off the South Pacific nation's north coast since a volcano there began erupting on Jan. 5, spouting ash. Flights nearby have been canceled due to the risk posed by ash plumes and ships were warned to stay away from the island. Steve Saunders, principal geodetic surveyor at the Rabaul Volcano Observatory in Papua New Guinea, said seismic activity had recently increased beneath the volcano. "The reason we're getting activity is probably because new magma is moving up from deeper down," Saunders told Australian Broadcasting Corp.
18th Jan 2018 - CBS News

Erupting volcano forces 34000 to flee Philippine villages

Glowing-red lava spurted in a fountain and flowed down the Philippines' most active volcano. The eruption has sent more than 34,000 villagers fleeing to safety and prompted police to set up checkpoints to stop tourists from getting too close. The Philippine Institute of Volcanology and Seismology said the lava flowed as much as two kilometres (1.2 miles) from the often cloud-shrouded crater of Mount Mayon, while ash fell on several villages in northeastern Albay province.
17th Jan 2018 - Telegraph.co.uk

Philippines: Thousands flee as volcano readies to blow

A restive volcano on the brink of a major explosion has forced more than 37,000 people to flee their homes. Mount Mayon, about 500km southeast of the capital, Manila, has spewed ash and streamed lava since Sunday, and authorities are bracing for a major eruption. The local volcanology agency has hoisted the third of a five-tier alert warning system, which means the volcano may be ripe for a "magmatic" eruption in a matter of weeks, or even days.
17th Jan 2018 - Aljazeera.com

Here are the six hottest volcanoes to watch in 2018

The eruption of Mount Agung on the island of Bali has sparked worldwide media interest, yet volcanic eruptions in Indonesia are nothing new. Of the country’s 139 “active” volcanoes, 18 currently have raised alert levels, signifying higher than normal seismic activity, ground deformation or gas emissions. On a global scale, in any week in 2017, there were at least between 14 and 27 volcanoes erupting.
17th Jan 2018 - City Metric

We're volcano scientists – here are six volcanoes we"ll be watching out for in 2018

4th Jan 2018 - The Independent

Mount Etna may not be a "real" volcano and "could be closer to a giant hot spring"

Etna, one of the world’s biggest and most powerful volcanoes, may have more in common with a giant hot spring than a volcano, a scientist has claimed. Long classed as a stratovolcano, the 3,350 metre-high mountain on the popular holiday island of Sicily also spews out some seven million tonnes of steam, carbon dioxide and sulphur dioxide every year. In a report published in the New Scientist, Professor Ferlito explains the widely-believed theory that the steam, carbon dioxide and sulphur dioxide produced from Etna's eruptions are released from magma as it rises to the surface. But he questions the validity of this conventional explanation, arguing for it to be true, Mount Etna would need to erupt ten times more lava than it already does.
16th Jan 2018 - Express.co.uk

Sicily's Mount Etna might not be a proper volcano

16th Jan 2018 - Daily Mail

New Eruption at Turrialba Volcano Costa Rica

The latest report from the National University’s Volcanology and Seismology Research Institute (OVSICORI) states that in the past 24 hours the activity in the Turrialba Volcano has been low except in the early hours of this Tuesday when seismic activity was registered between 4 and 4:30 a.m., wish coincides with the emanations of ash that were dispersed to the southwest of the volcano. The Rincon de la Vieja Volcano in Guanacaste also registered some low seismic activity as well as the Tenorio Volcano, area that has recently been affected by an earthquake swarm which caused last week the change of coloration of the Rio Celeste River, however, OVSICORI confirms the latest activity hasn’t affected the river color again.
16th Jan 2018 - The Costa Rica Star

Volcano in Papua New Guinea little known, hard to predict

People in Papua New Guinea are being warned that an eruption of a volcano in the South Pacific nation could also cause a tsunami. The volcano on small Kadovar Island has been erupting for more than a week, forcing 700 people to leave that island and 3,000 to be evacuated from nearby Biem Island. Flights in the area have been canceled due to the risk posed by the ash plumes. Chris Firth, a volcano expert from the Department of Earth and Planetary Science at Australia's Macquarie University, said Tuesday the steepness of the volcano meant an eruption may trigger landslides into the sea, which could create a tsunami. The volcano was also not well-studied so its activity would be harder to predict.
16th Jan 2018 - Business Insider

We All Nearly Missed The Largest Underwater Volcano Eruption Ever Recorded

The Kiwi passenger emailed photos of the strange ocean slick to scientists, who realised what it was – a raft of floating rock spewed from an underwater volcano, produced in the largest eruption of its kind ever recorded. "We knew it was a large-scale eruption, approximately equivalent to the biggest eruption we've seen on land in the 20th Century," says volcanologist Rebecca Carey from the University of Tasmania, who's co-led the first close-up investigation of the historic 2012 eruption. The incident, produced by a submarine volcano called the Havre Seamount, initially went unnoticed by scientists, but the floating rock platform it generated was harder to miss.
15th Jan 2018 - Science Alert

12000 flee as Philippines warns of volcano eruption

The crater of a rumbling Philippine volcano was glowing bright red Monday, with vulcanologists warning it could erupt within days, sending thousands fleeing from their homes. Volcanic earthquakes and rockfalls have shaken the summit of Mayon over the last 24 hours, after a number of steam-driven eruptions, scientists said. More than 12,000 people have been ordered to leave a seven-kilometre (four-mile) evacuation zone, and there are warnings of destructive mudflows and toxic clouds. "It is dangerous for families to stay in that radius and inhale ash," Claudio Yucot, head of the region's office of civil defence, told AFP.
15th Jan 2018 - Telegraph.co.uk

Watch: Drones give closer view of active volcano

With the help of drones, researchers are investigating an active Nicaraguan volcano that could pose a hazard to millions of people. Masaya volcano is located in an active volcanic and seismic zone and is nearby Managua, Nicaragua’s capital. The researchers are using many methods, including drones, to study how the volcano and surrounding earth are changing over time. The drones are able to capture high-quality video footage and travel to places inaccessible to humans.
14th Jan 2018 - Futurity: Research News

Visit to Biggest Underwater Volcano in Last 100 Years Reveals Deep Sea Mystery

Scientists knew something strange happened when they heard reports of a raft of floating rock near New Zealand back in 2012. That raft eventually grew to around 150 square miles—remains of the largest underwater volcanic eruption in the 20th or 21st century to date, bigger even than Mount St. Helens. But when researchers actually visited the Havre volcano, it was nothing like they expected. Instead of the explosive, underwater Krakatoa-type eruption expected, they found signs of slower-moving lava flows... and realized that a whole lot of data they could have been using literally floated away.
11th Jan 2018 - Gizmodo

Volcano erupts in Indonesia's Bali, airport remains safe

The latest eruption of Mount Agung occurred at 5:54 p.m. local time (0954 GMT) Thursday. The volcano that has been active since September last year blasted back smoke, billowing 2,500 meters high into the air. Land tremors were also felt during the eruption, which lasted 130 seconds, the agency said. Rain of ash was reported to be affecting villages not far from the volcano summit as the eruption column was 2.5 km high, the agency said.
11th Jan 2018 - Xinhua

Surprise awakening of Papua New Guinea volcano forces evacuations

An island volcano in Papua New Guinea has begun spewing ash into the air, forcing the evacuation of more than 500 residents, media and non-profit groups have said. Kadovar Island, a 365 metre tall volcanic island just north-east of PNG, was thought to be dormant until it began erupting on 5 January. “It’s just a continuous emission of volcanic ash at the moment,” said Cheyne O’Brien, a forecaster at the Darwin Volcanic Ash Advisory Centre.
7th Jan 2018 - The Guardian