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Sat, 24 Feb 2018
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Volcanoes

Attention

Alert level 2 at Kanlaon volcano in the Philippines after phreatic explosion

A photo taken on Saturday, June 18, 2016 and released by the Philippines Institute of Volcanology and Seismology (Phivolcs) shows Kanlaon volcano spewing ash into the air
© AFP/Phivolcs
A photo taken on Saturday, June 18, 2016 and released by the Philippines Institute of Volcanology and Seismology (Phivolcs) shows Kanlaon volcano spewing ash into the air
The Philippine Institute of Volcanology and Seismology placed Kanlaon Volcano under alert level 2 after a phreatic eruption at past 9 a.m. Saturday.

PhiVolcs Director Renato Solidum told Super Radyo dzBB that the eruption occurred at 9:47 a.m. and that Kanlaon's activity was caused bay a magma moving up between 20 to 30 kilometers in depth from the crater.

Solidum also said that while the eruption is not severe, he advised residents and visitors to avoid going near the summit.

Under alert level 2, the 4-kilometer permanent danger zone from the summit should be observed, Solidum said.

Seismic instruments detected ground movements, coupled by rumbling sound for 10 minutes, Solidum said, adding the ash falls affected a barangay near the volcano.

Source: GMA News Online

Magnify

Experts scramble to keep an eye on long-dormant volcano in Iceland

ORAEFI, Iceland Volcano
At the summit of one of Iceland's most dangerous volcanoes, a 72-foot (22-meter) depression in the snow is the only visible sign of an alarming development.

The Oraefajokull (err-IVER'-yer-kuhl) volcano, dormant since its last eruption in 1727-1728, has seen a recent increase in seismic activity and geothermal water leakage that has worried scientists. With the snow hole on Iceland's highest peak deepening 18 inches (45 centimeters) each day, authorities have raised the volcano's alert safety code to yellow.

Experts at Iceland's Meteorological Office have detected 160 earthquakes in the region in the past week alone as they step up their monitoring of the volcano. The earthquakes are mostly small but their sheer number is exceptionally high.

"Oraefajokull is one of the most dangerous volcanos in Iceland. It's a volcano for which we need to be very careful," said Sara Barsotti, Coordinator for Volcanic Hazards at the Icelandic Meteorological Office.

Comment: See also: and if that's not interesting enough, the following are just some of the volcanoes currently being watched from around the world:


Attention

Iceland's Öræfajökull volcano may be about to erupt for first time since 1728

Iceland's Oraefajokull volcano
© Kristinnstef
The Oraefajokull volcano is part of Iceland's Skaftafell National Park.


The last but one time Oraefajokull spewed ash into the sky, the area around it had to be abandoned for decades.


A long-dormant volcano in Iceland may be about to erupt, scientists fear.

The Oraefajokull volcano last spewed out ash and lava in 1728, but is showing renewed signs of activity.

A hole in the snow on the top of the mountain has been becoming 45cm deeper every day.

It is now more than 22 metres (72ft) lower than where it was before the activity began.

There has also been a recent increase in seismic activity and geothermal water leakage, volcanologists have said.

Experts at Iceland's Meteorological Office have detected 160 earthquakes in the region in the past week alone.

As a result, authorities have raised the volcano's alert safety code to yellow.

Comment: Bardarbunga, Iceland's biggest volcano is also being monitored after a series of earthquakes recently.


SOTT Logo Media

Oppenheimer Ranch Project Report: US West coast firestorm albedo grows - Shishaldin Volcano alert

fires
SoCal Wildfires: Los Angeles, Ventura declare state of emergency as 200 000 evacuate.

Attention

Öræfajökull caldera in Iceland deepens by about 20 metres

The last eruption in Öræfajökull occurred in 1727.
© mbl.is/RAX
The last eruption in Öræfajökull occurred in 1727.
Volcanologist Ármann Höskuldsson says that the situation at Öræfajökull volcano is "Far from normal." There's still geothermal heat in the area and the caldera has deepened by some 20 metres.

A 3-D image made by specialists at the Geological Institute of the University of Iceland indicates that the caldera has deepened by twenty metres and that crevasses have become larger since it was first spotted.

The image was made using various information, not in the least the photographs of Morgunblaðið photographer Ragnar Axelsson who flew over the glacier on November 19th and again on November 28th.

"We see a greatly increased pattern of fissures around the caldera. It's now more of a drop shape than a circle, lengthening towards the South West," says Ingibjörg Jónsdóttir at the University of Iceland speaking to Morgunblaðið today.

Source: Morgunblaðið

Attention

Shiveluch volcano in Russia erupts spewing hot ash 6 miles into the sky

The volcano ashes 10 kilometres in the air

The volcano ashes 10 kilometres in the air
A Siberian super volcano has terrified experts after it began spewing piping hot ash 6 miles into the air.

Scientists working at the geophysical department of the Russian Academy of Science in north-eastern Russia's Kamchatka Krai region have confirmed the giant eruption took place at the site of the Shiveluch Volcano yesterday over a 20 minute period and saw the volcano spew ash 10 kilometres (6 miles) into the sky.

Experts have raised the alert after the volcano flung hot ash into the air for the first time since February 2016.

It is not believed any locals or villages surrounding the eruption were affected.


Blue Planet

A force to be reckoned with: Seismologists report that a volcano is building up under New England

New Enland

Enjoy it while you can
Are you frustrated that your favorite team seems to always lose to the Boston Celtics, New England Patriots or Boston Red Sox? Help may be coming, if you can wait a few years.

"The upwelling we detected is like a hot air balloon, and we infer that something is rising up through the deeper part of our planet under New England."

Info

Engine of climate change: Thousands, and possibly millions, of underwater volcanoes remain undiscovered

The world is watching one volcano in Bali, but it's sobering to think there may be hundreds of others going off, and almost certainly ones we don't even know about. The article Is the Bali volcano making us warmer or cooler? by William F Jasper, reminded me of Ian Plimers words about there being squillions of undersea volcanoes so I found the 2007 paper, by Hillier, that tried to count them. Trying being the appropriate word. Volcanoes are biggish things, but when they are under one or two kilometers of water they are hard to hear, hard to see, and, by crikey, we know more about the moon than the bottom of the Marinara, and it's only 11km "away".

People are constantly discovering new volcanoes, like a 3,000m one off Indonesia that no one realized was there til 2010. It turns out the second largest volcano in the solar system is apparently not on Io, but 1,000 miles east of Japan. It's the size of the British Isles, but who knew? A few months ago a team found 91 new volcanoes under Antarctica. (This is getting serious, someone should talk to the Minister for Lava!)
Marianna Volcanoes
© JoNova

Eye 1

Yellowstone supervolcano threat theory 'demonstrably false' - USGS expert to RT

Yellowstone National Park
© Jim Urquhart / Reuters
Yellowstone National Park
If you spend any time on the internet, it seems every few months humanity is faced with a looming existential threat from the depths of space. Planet X/Nibiru, the rapture or a wayward comet are, according to conspiracy theorists, destined to destroy us.

However, there is one particular conspiracy, treasured by theorists, that our impending doom will come from within planet Earth - that lurking beneath America's Yellowstone National Park is a supervolcano that will kill us all.

Yellowstone, in the midwestern US, is - they claim - about to erupt and send unfathomable amounts of matter into the sky, covering anyone in the vicinity in a pyroclastic flow of ash and rock, and blocking out the sun, wiping out almost all life on Earth in the process.

Conspiracy theories tend to draw on some grain of truth. The super volcano really has erupted before, three times in fact, over the last 2 billion years or so, but the theory goes that it's bound to do so again soon, right? RT.com caught up with Michael Poland, Scientist-in-Charge at the Yellowstone Volcano Observatory, to find out the full extent of this lurking supervolcanic 'threat.'

Comment: See this article for a different perspective: Disastrous super-eruption could happen sooner than first thought
The new study from Bristol scientists, published in the Earth and Planetary Science Letters, suggests large, catastrophic eruptions are most likely to happen every 17,000 years.

It's a significant revision from a 2004 estimate, said Jonathan Rougier, of the University of Bristol.

"The previous estimate, made in 2004, was that super-eruptions occurred every 45-714 thousands years, comfortably longer than our civilization. But in our paper just published, we re-estimate this range as 5.2-48 thousand years, with a best guess value of 17,000," he said.

And the two most recent ones came 30,000 to 20,000 years ago.

"On balance, we have been slightly lucky not to experience any super-eruptions since then. But it is important to appreciate that the absence of super-eruptions in the last 20,000 years does not imply that one is overdue. Nature is not that regular."

He added: "What we can say is that volcanoes are more threatening to our civilization than previously thought."

In 2014, the US Geological Survey warned that if the massive volcano at Yellowstone National Park were to boil over, cities nearly 300 miles away would be covered in up to three feet of ash.



Bizarro Earth

Covered in a blanket of ash: The aftermath of Bali's Mount Agung eruption

Mount Agung eruption Bali
© Reuters
Scene after Mount Agung started erupting in Bali
A blanket of black ash covers all ground, trees and objects in sight after authorities ordered the evacuation of 100,000 people.

A plume of ash and smoke was sent about 2,000 meters above the crater, though the Distaster Mitigation Agency said ash particles have drifted up to 7,600 metres from the mountain.

Around 40,000 people were placed in temporary shelters after the volcano, which last erupted in 1963, swelled with molten lava.

The alert level on Mount Agung remains at maximum, but the airport has reopened after a change in wind direction blew towering columns of ash and smoke away from the airport.


Comment: See also:

Mysterious night flashes seen near erupting Mt. Agung in Indonesia
Mount Agung eruption: Indonesian authorities expand evacuation zone, close airport