Volcano Discovery Saturday Apr 06, 2013 17:28 PM
The Caliente lava dome of Santiaguito this morning
Telica seismogram this morning (TELN station INETER)
It seems we have had a relatively calm day (for the volcano world) so far:
Shiveluch (Kamchatka): Moderate seismic activity and weak shallow earthquakes were registered. Hot avalanches (collapse of parts of the growing dome) and possibly explosions accompanying this process produced a plume rising to 20,000 ft (6 km) altitude yesterday. Strong degassing and steaming are continuous.
Sakurajima (Kyushu, Japan): Vulcanian explosion-type eruptions have been relatively infrequent recently (only 0-2 per day), but some of them produced ash plumes rising as high as 12,000 ft (3.7 km) altitude.
Taal (Luzon, Philippines): Recently, the number of earthquakes has dropped to low (normal) levels of 0-3 on average. Still, some inflation in parts of the caldera and slightly elevated CO2 emissions are present and PHILVOLCS maintains yellow alert level.
Batu Tara (Sunda Islands, Indonesia): An ash plume rising to 7,000 ft (2.1 km) was spotted again yesterday, indicating ongoing explosions at the remote volcano in the Flores Sea.
Raung (East Java): VSI has lowered the alert level of the volcano down to 2 out of 4 (Waspada) after Raung had been on orange since October. The seismic activity has gradually decreased and currently, there is only degassing, sometimes intense, from the crater.
Tambora (Sumbawa): VSI raised the alert level to 2 (Waspada) on a scale of 1-4, but does not specify the reason (likely increased seismic activity). No further details are known for the time being.
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