Volcanos

Roundup of Global Volcanic Activity:

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.

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.