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Fri, 23 Feb 2018
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Volcanoes

Attention

Mayon Volcano in the Philippines remains on alert level 1 after 57 volcanic quakes

Mayon Volcano in Albay province is Bicol region’s top attraction.
© Michael B. Jaucian
Mayon Volcano in Albay province is Bicol region’s top attraction.
The Philippine Institute of Volcanology and Seismology (Phivolcs) said Monday, October 30, that Mayon Volcano remains on alert level 1 following the occurrence of at least 57 volcanic quakes since Saturday, indicating its sustained abnormal state.

Alert Level 1 means Mount Mayon is having an "abnormal condition."

"Although this means that presently no magmatic eruption is imminent, it is strongly advised that the public refrain from entering the 6-kilometer radius Permanent Danger Zone due to the perennial life-threatening dangers of rockfalls, landslides/avalanches at the middle to upper slope, sudden ash puffs and steam-driven or phreatic eruptions from the summit," the Phivolcs 8 a.m. bulletin stated.

Phivolcs resident volcanologist Ed Laguerta said the agency is closely monitoring the surge of volcanic earthquakes currently taking place for the past three days, specifically the parameters that could trigger the volcanic tremors.

Attention

Mount Sinabung erupts in North Sumatra, Indonesia

Mount Sinabung eruption.

Mount Sinabung eruption.
Mount Sinabung has erupted, producing hot clouds of 4.5km from east to southeast, Head of Data and Information Center of National Disaster Management Agency's (BNPB) Public Relations Sutopo Purwo Nugroho said.

Sutopo said the eruption occurred at 9:59 PM, Tuesday (24/10/2017), with column height of 2km.

He added that Mount Sinabung erupted once again on the same day at 2:45 pm.

During the second eruption, Mount Sinabung produced hot clouds that slid as far as 3km from east to southeast. The column height was 1km.

"Mount Sinabung erupted again on 10/24/2017, 2:45 pm. Hot clouds glide 3km from the east to southeast. Column height was 1km. It was a 300-second-long quake," said Sutopo, in his Twitter, @Sutopo_BNPB.

Attention

Strong explosions on Stromboli volcano, Italy

Stromboli volcano

Stromboli volcano
A strong explosion occurred at the volcano this afternoon at 16:04:40 local time. Bombs were landing on a vast area around the crater terrace including the viewing area on Pizzo, but fortunately, it seems that no people were there at the time of the eruption. Video kindly provided by: INVG Catania


Attention

Reports of ashfall as Tinakula volcano erupts in the Solomon Islands

A satellite image of Tinakula, Solomon Islands, taken in 2012
© NASA Earth Observatory
A satellite image of Tinakula, Solomon Islands, taken in 2012
Authorities in the Solomon Islands are trying to work out if there's been any damage after a remote volcano erupted early this morning.

The volcano, Tinakula, which forms an uninhabited island in the northern Temotu province, roared to life at about 2am today.

Villages on nearby islands have reported heavy ashfall.

The director of the National Disaster Management Office in Honiara, Loti Yates, said a police patrol had been deployed from the provincial capital, Lata.

He said information had been slow to trickle out of the remote area, and it could be some time before the full situation was known.

An aviation warning has been issued for the Santa Cruz area.

Attention

New fears Bali's Mount Agung could erupt at any moment as volcanic activity soars and magma rises to the surface

There are fresh fears that Bali's Mount Agung (pictured) could erupt after the volcano reached peak earthquake activity, with thousands of tremors a day

There are fresh fears that Bali's Mount Agung (pictured) could erupt after the volcano reached peak earthquake activity, with thousands of tremors a day
There are fresh fears that Bali's Mount Agung could erupt after the volcano reached peak earthquake activity today.

Up to 1,000 tremors have been recorded in the area each day, with the frequent movements indicating a flow of magma towards the surface, Perth Now reports.

It comes as Indonesia's Mount Sinabung erupted on Sunday, causing evacuations and spewing ash half a kilometre into the air.

The activity at Mount Agung is being closely monitored by airlines, with travel to Bali expected to be severely affected should an eruption occur.

An emergency operations centre has been set up at Bali's International Airport, with travel insurance companies also imposing restrictions on policies in the wake of the warnings.

Attention

Mount Sinabung spews clouds of ash and prepares to erupt as authorities plan for emergency evacuations in Indonesia

Lava flows from crater of Mount Sinabung during an eruption in Karo, Indonesia, on Sunday

Lava flows from crater of Mount Sinabung during an eruption in Karo, Indonesia, on Sunday
A huge volcano in Indonesia erupted on Sunday, spewing hot ash into the air.

Thousands were evacuated after Mount Sinabung in Karo, Indonesia, started erupting and spewing ash half a kilometre into the air.

The volcano began erupting in 2010 after lying dormant for four centuries.

A large eruption in May 2016 killed seven people.

Attention

La Palma volcano in the Canary Islands hit by hundreds of earthquakes in 15 hours

La Palma was hit by 44 earthquakes over a magnitude 2.1 from Friday evening

La Palma was hit by 44 earthquakes over a magnitude 2.1 from Friday evening
A shock map has been released by Spanish authorities showing where the tremors hit in the area surrounding the deadly Cumbre Vieja.

There were 44 earthquakes recorded up to 2.1 magnitude hit between Friday at 1.52pm and Saturday to 4.17am.

But experts believe the total number, including ones too small to be located, within the seismic storm was 352.

The quakes follow another seismic storm the weekend before. which saw around 50 tremors in three days, between 1.5 and 2.7 on the Richter Scale.

Attention

Shinmoedake volcano in Japan erupts again, sends plume 2,300 meters into the air

A huge plume of smoke emerges from Mount Shinmoedake in southern Kyushu on Oct. 14.

A huge plume of smoke emerges from Mount Shinmoedake in southern Kyushu on Oct. 14.
Kyushu's Mount Shinmoedake is still rumbling with volcanic activity three days after it blew its top for the first time in six years on Oct. 11.

The Japan Meteorological Agency said an eruption that started at 8:23 a.m. on Oct. 14 sent a plume of smoke 2,300 meters into the air.

The 1,421-meter-high mountain straddles the border of Miyazaki and Kagoshima prefectures in southern Kyushu. The JMA raised the volcano's activity alert to Level 3, warning people to stay away from the mountain. The alert had been at Level 2, which meant climbers should stay away from the crater.

Around 4 p.m. on Oct. 13, the JMA announced that consecutive eruptions appeared to have stopped as the fluctuation of volcanic tremors had weakened.

But the agency continued to urge caution as it believed volcanic activity was continuing.

Attention

Yellowstone's supervolcano: Threat is greater than previously thought

supervolcano
© The Sun/Getty
Yellowstone supervolcano caldera
Scientists from the US Geological Survey who breezily informed the public that there's "nothing to worry about" with regards to the Yellowstone caldera, a supervolcano that should it erupt could cause potentially hundreds of thousands of deaths, should be eating their words.

Since about mid-July, the earth beneath the volcano has been shifting in a sign that magma could be rushing into the caldera's main chamber. Since then, there have been roughly 2,500 small-scale earthquakes recorded near the volcano, the largest stretch on record. Previous estimates had assumed that the process that led to the eruption took millenniums to occur.

The same estimates that USGS based their warning on.

Caldera chart
© Unknown
As the New York Times explains, the Yellowstone caldera is a behemoth far more powerful than your average volcano. It has the ability to expel more than 1,000 cubic kilometers of rock and ash at once, 2,500 times more material than erupted from Mount St. Helens in 1980, which killed 57 people. That could blanket most of the United States in a thick layer of ash and even plunge the Earth into a volcanic winter.

As the Times points out, scientists expect a supervolcano eruption to scar the planet once every 100,000 years.

To reach their conclusion, the team of scientists spent weeks at Yellowstone's Lava Creek Tuff - a fossilized ash deposit from the volcano's last supereruption, where they gathered samples and analyzed the volcanic leftovers. The analysis allowed the scientists to pin down changes in the lava flow before the last eruption. The crystalline structures of the rocks recorded changes in temperature, pressure and water content beneath the volcano just like tree rings do.

Attention

Scientists on alert as underwater volcano Tagoro in the Canary Islands bursts into life

The underwater volcano near El Hierro is simmering

The underwater volcano near El Hierro is simmering
On October 10, 2011, the Tagoro underwater volcano near to the island of El Hierro, the smallest of the isles in the Canaries, began bursting into life.

The volcano beneath the surface began spewing ash and lava which bubbled to the top - and although that eruption was not too strong, scientists are monitoring the volcano as they are wary it could burst into life with more power.

A project known as Vulcano-II-1017 from the Ministry of Economy, Industry and Competitiveness and Feder, in conjunction with the Spanish Institute of Oceanography, the University of Las Palmas de Gran Canaria, the University of La Laguna and the Museum of Nature and Man of Tenerife, will monitor the situation to see if the volcano poses any danger.

The reason experts are keeping a close eye on it is because the volcano is still rumbling six years after its eruption near to the tourist hotspot.

Comment: See also this recent report from the 10th of October concerning the region: 40 earthquake tremors in 48 hours hit La Palma, Canary Islands