Actividade Vulcânica 2018



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Eruption cannot be ruled out: Grímsey quakes concentrated in submarine volcanic system
BY STAFF |FEB 20 2018




  • NAFIR VOLCANOES A map of the ocean floor NE of Grímsey island: Note North is not up, but to the right. Grímsey is located in the black area in the upper left corner. The Nafir volcanic system is marked with a red line and recent earthquakes are marked with dots. The quakes are concentrated beneath the southernmost volcano in the system. Photo/ÍSOR Iceland Geosurvey
The seismic activity off the north coast of Iceland which began on Wednesday last week is still ongoing, although the intensity of the quakes appears to have slowed down somewhat. No 3+ quakes have been detected since early morning today, Tuesday. However, it is still too early to say whether the activity is dying out or whether the Tjörnes fracture system, is just catching its breath before the next big thing.
... http://icelandmag.is/article/erupti...quakes-concentrated-submarine-volcanic-system
 
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Japanese volcano erupts, dozens of flights grounded
March 6, 2018 by Mari Yamaguchi
japanesevolc.jpg

A column of volcanic smoke rises from the crater on the Shinmoedake volcano after its eruption in Kirishima, southern Japan, Tuesday, March 6, 2018. The volcano erupted violently several times Tuesday, shooting up ash and smoke up to 2,300 …more

A volcano in southern Japan that appeared in a James Bond film had its biggest eruption in years Tuesday, shooting smoke and ash thousands of meters (feet) 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.

Public broadcaster NHK showed gray volcanic smoke billowing into the sky and orange lava rising to the mouth of the crater. The Meteorological Agency said ash and smoke shot up 2,300 meters (7,500 feet) into the sky in the volcano's biggest explosion since 2011.

In Kirishima city at the foot of the volcano, pedestrians wore surgical masks or covered their noses with hand towels, while others used umbrellas to protect from falling ash. Cars had layers of ash on their roofs.

There were no reports of injuries or damage from the eruptions. The agency said the volcanic activity is expected to continue and cautioned residents against the possibility of flying rocks and pyroclastic flows—superheated gas and volcanic debris that race down the slopes at high speeds, incinerating or vaporizing everything in their path.

The volcano, seen in the 1967 James Bond film "You Only Live Twice," has had smaller eruptions since last week.

1-japanesevolc.jpg

A column of volcanic smoke rises from the crater on the Shinmoedake volcano after its eruption in Kirishima, southern Japan, Tuesday, March 6, 2018. The volcano erupted violently several times Tuesday, shooting up ash and smoke up to 2,300 …more
Entry to the 1,421-kilometer (4,660-foot) -high volcano was restricted. About 80 flights in and out of nearby Kagoshima airport were canceled.

Japan, which sits on the Pacific "Ring of Fire," has 110 active volcanoes and is prone to earthquakes and volcanic eruptions.

An eruption of Mount Ontake in 2014 killed about 60 people. In January, a surprise eruption of another volcano in central Japan killed a soldier during ski training and injured 11 others. Several other Japanese volcanoes have had smaller eruptions.


Cars and buildings are covered with volcanic ash after Mount Shinmoedake erupted, in Kirishima city, 6 kilometers (3.7 miles) from the volcano, Tuesday, March 6, 2018. The volcano erupted violently several times Tuesday, shooting up ash and …more


Read more at: https://phys.org/news/2018-03-japanese-volcano-erupts-dozens-flights.html#jCp
 
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Vanuatu volcanic ash fall higher than last year
7:46 pm on 19 March 2018

A disaster official on Vanuatu's Ambae island says a renewed volcanic eruption is leaving a heavier ash fall than last year.

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Photo: RNZ / YouTube

The entire island was evacuated late last year when the volcano at the island's centre erupted, blanketing the island in ash, suffocating crops and contaminating water.

The population returned when the eruption settled down after a month, but on Sunday night, the volcano's alert level was raised from level 2 to 3 -- what's called a "state of minor eruption."

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People being evacuted from Ambae during the eruption event in 2016. Photo: YumiToktok

An officer for the National Disaster Management Office on Ambae, Manson Taridenga, said so far three communities have been relocated and help is being sought from the government.

"Ash fall is heavy. From here to last year, 2017, I think this one is much heavier, much bigger than the one from last year. So all the crops are dying except we think that water taro is much strong but it seems now it is also withering." said Manson Taridenga.
https://www.radionz.co.nz/internati...nuatu-volcanic-ash-fall-higher-than-last-year