Merapi

Posted in Uncategorized with tags , , , on April 19, 2011 by indonesianvolcanoes

Indonesia’s most active volcano, mount Merapi, erupted six months ago. There were 322 dead and an additional 136,585 locals had to be evacuated. You might wonder why this is relevant now. Of those 136,585, 100,000 lost their houses during the eruption, but since then another 3,750 had to leave their homes as well so as not to be swept off with them by what this article calls “cold lava”, more commonly known as mudflows. These mudflows careen down the slopes of the volcano, torrents of water, ash and debris creating a cement-like substance. These people have fled to shelters set up by the government and various Non-governmental Organizations or been taken in by kind-hearted inhabitants of surrounding villages.

By Clara Lang-Ezekiel.

April 19th 2011

More info at: http://www.speroforum.com/site/article.asp?id=52222&t=Indonesia%3A+Volcano’s+victims+still+unable+to+rebuild

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Recent Activity in Hawaii: March 30th-April 5th

Posted in US/Mexico on April 12, 2011 by sarahnye1

The picture above is from March 28th, showing the lava that reappeared in the Pu`u `Ō `ō crater, covering the floor with a small lava lake

Hawaiian Volcano Observatory

Kilauea Update:

From March 30th to April 5th, The Hawaiian Volcano Observatory reported that the lava lake in the deep pit within Kilauea’s Halema’uma’u crater was for the most part crusted over. Incandescence was observed through web cameras on March 30th, and lava was visible at times during March 31st and April 3rd and 4th. A gas plume from the vent deposited small amounts of  ash nearby, derived from rockfalls and occasional spatter from the lava lake.

At Pu’u ‘O’o crater, the lava lake was fed from a few sources in the center or West portions of the lake. The deepest part of the crater was episodically filled and drained. From April 4th-5th, the central lava sources produced two or three small lava flows and infrequent spatter.

Smithsonian Volcanic Activity Reports

By Sarah Nye

April 12th, 2011

Mt Fuji

Posted in Japan/Philippines on April 12, 2011 by nallurihp

Mount Fuji is known worldwide as one of Japan’s symbols. It is named for the Buddhist fire goddess Fuchi, and though it may not hold too great of meaning to outsiders, the Japanese consider it the holiest of their three scared mountains and place great importance in it.

Despite it’s beauty and serene appearance, Fuji is indeed a “perfectly” shaped stratovolcano. Fuji last erupted in 1707. This eruption began on December 16th and lasted into the next year until January 1st. Although there was no lava flow, the volcano erupted an immense amount of ash, the estimated amount to be around 800,000,000 m³. Fields and crops were ruined and the falling volcanic ash contaminated freshwater streams. As a result of this many parts of Japan suffered from famine and slowly starved. The ash in the rivers slowly settled to the bottom, and caused many of them to become shallower. The Sakawa river flooded because volcanic ash flew and made temporary dams here and there and eventually the downpour of rain the year following the eruption caused an avalanche of volcanic ash and mud and broke the dams, causing the flooding.

As of now Mt Fuji is till considered to be an active volcano, but the chance of an eruption any time soon has been deemed to be low.

Above is a view of Fuji in the spring time

http://japaneseprints.org/

Mt Fuji has been inspiring art for centuries, and above is a well known print of it by the japanese artist Hokusai.

Another view of Fuji

If you’ve got the patience, above is a fun and interesting video tracking two guys attempting to climb Mt Fuji.

Sources:

http://en.wikipedia.org/wiki/Hoei_eruption_of_Mount_Fuji

http://www.volcano.si.edu/world/volcano.cfm?vnum=0803-03=

http://www.japan-guide.com/e/e2172.html

Priya Nalluri 4/12/11

Etna erupts again.

Posted in Italy with tags , , , on April 12, 2011 by italyicelandvolcanoes

It seems as though the regions of Iceland and Italy are having a fairly quiet season in terms of volcanoes. Mount Etna, however, erupted on April 10. This is the third eruptive episode of its type to occur in 2011 on the Southeast crater. The type of eruption is strombolian: there was a lava flow, the expulsion of tephra, a gas column and lava fountaining. There were also small pyroclastic flows due to the presence of snow. Though the eruption seemed to have more or less subsided after two days, little is known as to whether more activity will ensue.

This image can be found here. It is an image of a small pyroclastic flow, created as lava passed over snow.

Khia Johnson 4/11/11

Volcanic Activity for Russia March 30 to April 8

Posted in Russia with tags , , on April 8, 2011 by jameshupp

A Map of Kamchtka

KARYMSKY: Increased seismic activity between March 25 through April 1, with thermal anomaly being detected along with ash plumes reaching heights of 5km and drifting 55km in many directions.

KIZIMEN: Volcanic earthquakes continue at a high rate, with a possible eruption on April 1 producing an ash plume that rose to 4.3km and drifted East. Another possible eruption occurred on April 6.

KLIUCHEVSKOI: Possible eruption on the 30th of March, producing an ash plume rising to 5.2km and moving Eastward.

SHIVELUCH:Increased seismic activity with a multitude of ash plumes reported.

sources: http://www.kscnet.ru/ivs/kvert/updates.php

http://www.volcano.si.edu/reports/usgs/

Guatemala Update

Posted in Uncategorized on April 7, 2011 by zaradaula

According to the Global Volcanism Program, Fuego in Guatemala has been erupting the last two days. It produced ash plumes that rose up to 700 m above the crater and lava flows that traveled nearly 200 m down the South West side of the volcano and created block avalanches.

Also in Guatemala, Santa Maria erupted on March 28, producing ash plumes that rose 800 m above the lava dome. This plume traveled North East and deposited ash on the town of Quetzaltenango, which is 10 km away. Then in the last couple of days, explosions created ash plumes slightly smaller (only 400-700 m) and drifted South. Avalanches were produced and traveled down the South West and Eastern flanks of the volcano.

I couldn’t find any current footage of either volcano, so I found photos instead.

Santa Maria:

Fuego:

Zara Holderman, April 6, 2011

Indonesia

Posted in Uncategorized with tags , , , , , on April 5, 2011 by indonesianvolcanoes

Karangetang

In early March the Indonesian volcano Karangetang began to show signs of being active and potentially dangerous. By mid March the country’s National Disaster Management Agency had evacuated up to 1,200 people from the two villages built on the slopes of the volcano.

The 7,500 feet high volcano, Karangetang, being one of the country’s most active volcanoes had already erupted in August, killing four people. By March 21st lava flows had started to run down the flanks of the mountain.

Seismicity had decreased by March 24th, and the warning level was lowered to a 3.

Merapi

Another volcano to have erupted on the same weekend as Karangetang was Mount Merapi. By that Saturday ( March 19th) it had already buried 21 houses. The eruption has claimed no lives, and few injuries.

/Users/claralang-ezekiel/Desktop/Mount-Merapi.jpg

More information at:

http://articles.cnn.com/2011-03-21/world/indonesia.volcano_1_indonesian-volcano-active-volcano-ash-clouds?_s=PM:WORLD

http://www.thejournal.ie/residents-flee-after-indonesian-volcano-spews-fresh-ash-2011-03/

http://www.maxisciences.com/volcan/karangetang-indonesie-niveau-d-alerte-3-autour-du-volcan_mrm64725.html