Volcano Alert: Indonesia's Most Dangerous Volcano Ready to Erupt , Say Local Authorities

Regarding seismic triggering of volcanic activity:

Approximately 0.4% of explosive volcanic eruptions occur within a few days of large, distant earthquakes. This many “triggered” eruptions is much greater than expected by chance. Several mechanisms have been proposed to explain triggering through changes in magma overpressure, including the growth of bubbles, the advection of large pressures by rising bubbles, and overturn of magma chambers. Alternatively, triggered eruptions may occur through failure of rocks surrounding stored magma. All these mechanisms require a process that enhances small static stress changes caused by earthquakes or that can convert (the larger) transient, dynamic strains into permanent changes in pressure.

www.annualreviews.org...

Today's update from John Search -

Friday 5th November 2010
Merapi Volcano, Indonesia
More than 70,000 people have been evacuated from the eruption of Merapi volcano, Indonesia. The powerful eruption on Wednesday evening produced ashfall 260 km away from the volcano. Forty-four people have died since the volcano began erupting last week. Soldiers are moving people outside the 15 km exclusion zone, which was increased from 10 km after Wednesday's eruption. Merapi remains at the highest level RED alert.
More on Merapi volcano...
Volcanoes of Indonesia...

Friday 5th November 2010
Krakatau Volcano, Indonesia
Volcanic activity has been increasing at Krakatau volcano, Indonesia. The volcano is producing 100 explosions per day. Sailors crossing the Sunda Strait are being cautioned about the activity of Krakatau, which has been increasing for more than a week. Tourists have been advised to stay at least 2km away from the volcano.
More on Krakatau volcano...

Source

Note to people in Indonsia - Move!

Just checking out one of my images of the day from Nasa's Earth Observatory
(insert small 'woo-hoo' for inserting my first image correctly)

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Nasa Earth Observatory


Mount Sinabung started off my son's 2nd grade current event presentations. Didn't think that we would be following up so soon with another volcano from the same island. I would only hope that Indonesia would drop from our available current events

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Merapi Update for 11/4/2010: The eruption worsens

bigthink.com...

Today's activity has doubled the fatalities to over 100 people. thestar.com.my.../2010/11/5/worldupdates/2010-11-05T141829Z_01_NOOTR_RTRMDNC_0_-526884-4&sec=Worldupdates

Here is a news feed web page for Merapi: interceder.net...