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Volcanic activity worldwide 22 Aug 2013: Kizimen, Karymsky, Shiveluch, Poas
Thursday Aug 22, 2013 17:04 PM |
Glowing rock avalanche from Kizimen last night
Shiveluch this morning (KVERT webcam)
Phreatic activity at Poás on 20 Aug 2013 (OVSICORI)
Kizimen (Kamchatka): The lava dome continues to grow at the top of the volcano and produce incandescent rockfalls and small pyroclastic flows, generating ash plumes. A new prominent spine is being extruded at the top and visible on the webcam. The following time-lapse movies show this activity during the day and night:
Karymsky (Kamchatka): Activity has remained elevated. A series of ash emissions caused by moderately strong vulcanian-type explosions occurred over the past days. This morning, an ash plume rose to 8,000 ft (2.4 km) altitude and drifted east.
Shiveluch (Kamchatka): The volcano continues to extrude a new lobe of viscous lava (visible as the dark patch in the webcam image) at the lava dome, as well as produce occasional (usually small) ash explosions.
Poas (Costa Rica): A series of small phreatic eruptions occurred on 20 August at the crater lake. The first occurred at 09:55 (local time), ejecting mud and water to 2-3 m height, and a second one, more powerful, at 11:16 reached heights of 10-20 m.
Iliwerung (Lesser Sunda Islands): A submarine eruption has likely occurred this morning in Indonesia. VSI raised the alert level of Iliwerung volcano from 1 (normal) to 2 (watch) following increased seismic and visual activity from an underwater flank vent called Gunung Hobal. ... [more]
Sakurajima (Kyushu, Japan): A very large vulcanian explosion, one of the largest during this year occurred yesterday morning. It produced a mushroom shaped ash column that rose to about 20,000 ft (6 km) altitude that drifted over the Kagoshima town where ash fall occurred. ... [more]
Kverkfjöll (Eastern Iceland): A small phreatic eruption seems to have taken place yesterday at the ice-covered Kverkfjoell central volcano. The steam-driven (no fresh magma involved) explosion followed a small glacial flood on 15 August the Kverkjökull glacier released into the Volga river and was probably a result of the pressure release during the flood. ... [more]
Karymsky (Kamchatka): An explosion probably occurred last night (inferred from seismic data), and might have produced an ash plume of up to 20,000 ft (7.5 km) elevation, Tokyo VAAC reported. ... [more]
Latest quakes in Greece: Greece has a lot of earthquake activity, but most of them occur around the margin of the Aegean microplate. The Cycladic islands are located in its center and therefore seismically comparably quiet.
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