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Volcanic activity worldwide 17 Aug 2013: Kliuchevskoi, Kverkfjöll, Shiveluch, Reventador

Saturday Aug 17, 2013 16:37 PM |

Aerial photo of the NE rim of the Kverkjökull glacier with deposits of the flood and ash from the phreatic explosion (
Aerial photo of the NE rim of the Kverkjökull glacier with deposits of the flood and ash from the phreatic explosion (
MODIS hot spot at the summit of Klyuchevskoy volcano (MODIS, Uni. Hawai'i)
MODIS hot spot at the summit of Klyuchevskoy volcano (MODIS, Uni. Hawai'i)
MODIS hot spot data (past 7 days) for Shiveluch volcano (ModVolc, Univ. Hawaii)
MODIS hot spot data (past 7 days) for Shiveluch volcano (ModVolc, Univ. Hawaii)
MODIS hot spot data (past 7 days) for Reventador volcano (ModVolc, Univ. Hawaii)
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.

Kliuchevskoi (Kamchatka): A new eruption began at 06:30 UTC on 15 August, KVERT reports. Accompanied by strong tremor, strombolian activity has been taking place in the summit crater.
Incandescence at the summit of the volcano's summit were observed at night and a gas-steam plume containing small amounts of ash rose up to 18,000 ft (5.5 km) a.s.l. and drifted to the north-east of the volcano on August 16. Satellite data showed a big and bright thermal anomaly over the volcano on August 15-17. (KVERT weekly update)

Shiveluch (Kamchatka): Eruptive activity continued all week with explosions producing ash plumes that rose up to 16,400-22,960 ft (5.0-7.0 km) a.s.l. and extended to the east and north-east of the volcano.
A viscous lava dome continues to extrude on the north-western flank of the lava dome, accompanied by strong and moderate degassing, incandescence, and hot avalanches.
... [read more]

Reventador (Ecuador): Eruptive activity continues at moderate levels. There are occasional ash explosions with plumes of a few 100 m height and possibly minor lava effusion from the intra-caldera cone at the summit.
Previous news
MODIS hot spot at Veniaminof volcano (past 7 days, Univ. Hawai'i)
Friday, Aug 16, 2013
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]
SO2 plume from Sakurajima volcano (NOAA)
Wednesday, Aug 14, 2013
El Hierro (Canary Islands, Spain): Earthquake activity has been calmer today. So far, only 9 tiny quakes (all below magnitude 2) have been recorded under the island. ... [more]
Map of recent earthquakes under El Hierro (IGN)
Tuesday, Aug 13, 2013
El Hierro (Canary Islands, Spain): The number of earthquakes has increased from averages of 5-10 to about 30 during the past few days. The location of the recent quakes is in a N-S elongated layer about 10-12 km depth in the western part of the island under the El Golfo bay. So far, no quakes above magnitude 3 have occurred. ... [more]
Monday, Aug 12, 2013
Shiveluch (Kamchatka): The volcano has apparently entered a phase of elevated explosive activity. Over the past days, several explosions have occurred from the growing lava dome and produced ash plumes rising to up to about 23,000 ft (7 km) altitude. Small block avalanches and pyroclastic flows accompany the process as well. ... [more]
MODIS hot spot data (past 7 days) for Tolbachik volcano (ModVolc, Univ. Hawaii)
Thursday, Aug 08, 2013
Kizimen (Kamchatka): KVERT reports continuing growth of the lava dome, accompanied by hot avalanches and strong degassing. ... [more]

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