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2 years after new volcano appeared, seismic activity restarts on island

December 23, 2013 Comments off

globalnews.ca

Aerial view taken on October 17, 2011 of a green and brown stain at sea off the coast of the village of La Restinga on the Spanish Canary Island of El Hierro.

Aerial view taken on October 17, 2011 of a green and brown stain at sea off the coast of the village of La Restinga on the Spanish Canary Island of El Hierro.

DESIREE MARTIN/AFP/Getty Images

MADRID, Spain – Spain’s National Geographical Institute says the Canary Island of El Hierro has been rocked by more than 50 tremors in 24 hours, two years after a new volcano began to appear off its southern coast.

So far the resurgent seismic activity has caused no damage, a regional government spokeswoman said Monday. She spoke on condition of anonymity because she was not authorized to be identified in the media.

The last time the nascent volcano rattled the island the government evacuated the port of La Restinga, banned aircraft from flying over the southern tip and ordered ships to avoid the area.

At one point residents could see smouldering volcanic rocks spewing from the sea.

El Hierro has some 11,000 residents and was originally formed by volcanic activity.

2013 Breaks Record for Volcanic Eruptions

December 18, 2013 Comments off

thetrumpet.com

(gnuckx )A brand new island created by volcanic explosion is quickly growing and will likely remain a fixture of the Pacific landscape, Japan’s Meteorological Agency said on Thursday. The island was formed from lava that cooled and hardened above sea level after a large underwater volcano began erupting in late November.

While it is quite rare for new islands to spring up out of the sea, instances of major volcanic eruptions—especially for 2013—are becoming commonplace. In fact, 2013 will go down in history as the year with the most volcanic eruptions since record keeping began.

As of mid-December, the number of volcanic eruption for the year was at 83, according to calculations by Alvin Conway, author of The Extinction Protocol. Considering that the average is between 50 and 60 per year, this represents a significant increase. This number does not even include undersea volcanoes like the Read more…

Categories: volcano Tags: ,

Volcanic activity world-wide 11 January 2013: new activity at Etna and Stromboli, explosion from Kizimen, elevated activity at Santiaguito

January 12, 2013 Comments off

volcanodiscovery.com

Plosky Tolbachnik Volcano Russia

The Plosky Tolbachnik volcano has erupted for the first time since the 1970s in Russia’s Far Eastern Kamchatka Peninsula.

Activity continues to be elevated. Last night, the eastern lava over flow was weakly active at the outer flank of the NE cone. Strong glow over the summit, despite partially dense cloud cover, indicates that the magma column inside is high and ready to produce more lava flows.
Etna volcano: Weak strombolian activity and a small intra-crater lava flow inside Bocca Nuova’s eastern pit could be seen on a webcam image this night. Tremor remains elevated.

Plosky Tolbachik volcano in Kamchatka continues to erupt fluid lava flows with no signs of the eruption ending soon.
Slow effusive activity and a thermal anomaly visible on satellite images continue also at nearby Bezymianny although Tolbachik’s seismic signal obscures the one from Bezymianny.
Weak intermittent explosive activity continues at Karymsky (Kamchatka).
Kliuchevskoi (Kamchatka) continues to have strombolian activity in its summit crater.
Shiveluch (Kamchatka): effusive and explosive activity from the growing dome continue at moderate levels.
Kizimen (Kamchatka): An explosion this Read more…

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4 volcanoes rumble in Indonesia

September 20, 2012 Comments off

standard

Smoke and ash billow from North Maluku Smoke and ash billow from North Maluku’s Gamalama on Sunday. (Antara Photo/Rosa Panggabean)

BANDUNG, Indonesia — Three active volcanoes in Indonesia’s North Sulawesi and another one in North Maluku are rumbling due to the impacts of the recent major earthquake in the neighbouring Philippines, the head of the Vulcanology and Disaster Mitigation Agency, Surono, said Thursday.

 

“All four volcanoes are on alert status now,” Surono said in Bandung.

The three rumbling mountains in North Sulawesi are Mount Soputan in Southeast Minahasa, Mt. Lokon in Tomohon and Mt. Karangetang in the northern part of North Sulawesi, while Mt. Gamalama in Ternate Island grumbled in North Maluku.

Surono explained that the four volcanoes, which were located in one area, had rising levels of activity due to the impact of the Philippine earthquake.

Ash spewed from Mt. Soputan, for example, has been blown by the wind to Bitung. The volcanic ash was released by a volcanic explosion early on Tuesday morning, Surono said. “The explosion on the mountain took place until 2 a.m.,” he added.

The eruption could be heard up to 40 kilometres away. Observers now could not see or Read more…

Categories: Indonesia, volcano Tags: ,

Nicaragua remains on alert for volcanic activity

September 10, 2012 1 comment

nicaraguadispatch

Nicaragua remains on alert for volcanic activity On Watch: San Cristobal Volcano is still spewing eight times its normal emission level of sulfur (GRAPHOS Producciones)

The government’s emergency response system (SINAPRED) is maintaining a state of preventive alert in the northwestern departments of Chinandega and León after San Cristóbal Volcano erupted Saturday morning.

Although the volcano is showing some signs of calming down after three explosive belches on Saturday morning, school classes in Chinandega will remain suspended on Monday as the government and local population get to work cleaning up all the ash that fell on Read more…

Giant ‘balloon of magma’ inflating under Greek island could cause first eruption in over 60 years

September 10, 2012 1 comment

earth-issues

A giant ‘balloon of magma’ is inflating under the volcanic Greek island of Santorini, warns a new study.

The balloon is so big it has forced the island upwards by 14cm between January 2011 and April this year.

It has also triggered a series of small earthquakes, the first seismic activity in 25 years – raising fears that the volcano could erupt for the first time since 1950.

Volcanic crater on Nea Kameni, Santorini, Greece. The chamber of molten rock beneath Santorini's volcano expanded 10 to 20 million cubic metresVolcanic crater on Nea Kameni, Santorini, Greece. The chamber of molten rock beneath Santorini’s volcano expanded 10 to 20 million cubic metres

The chamber of molten rock beneath the volcano has expanded 10 to 20 million cubic metres – up to 15 times the size of London’s Olympic Stadium – between the time – according to a survey conducted by a team led by Oxford University scientists.

The results come from Read more…

Mt Fuji ‘under more pressure than last eruption’

September 6, 2012 Comments off

emirates247

Pressure in the magma chamber of Japan’s Mount Fuji is now higher than it was the last time the volcano erupted more than 300 years ago, scientists say, according to a report Thursday.

Tectonic shifts triggered by last year’s huge 9.0 magnitude undersea quake have left the chamber under 16 times the minimum pressure at which an eruption can occur, researchers said.

Researchers at the National Research Institute for Earth Science and Disaster Prevention studied the tectonic movements caused by the tsunami-triggering quake on March 11, 2011 and a magnitude 6.4 quake that rocked central Japan four days later, Kyodo News reported.

They estimated that 1.6 megapascals of pressure, equivalent to atmospheric pressure of some 15.8 kilograms per square centimetre (226 pounds per square inch), was being exerted on the magma chamber.

Volcanic eruptions can be triggered by as little as 0.1 megapascals of pressure, and the reading of 1.6 megapascals is “not a small figure”, said senior researcher Eisuke Fujita, according to Kyodo.

Mount Fuji, an almost perfectly cone-shaped mountain that stands as one of Japan’s national symbols, last erupted in 1707, after an earthquake struck and Read more…

Categories: Japan, volcano Tags: , ,
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