Volcanic activity world-wide 13 December 2012: Tobachik, Bagana, Popocatépetl, Fuego, Reventador, Sakurajima, Nisyros

Thu, 13 Dec 2012, 15:09
15:09 PM | BY: T
The eruption from Tolbachik volcano in Kamchatka continues with lava fountains at the lower vent feeding very active lava flows, but KVERT noted that tremor levels were fluctuating. This could suggest that the magma supply has become less steady and the eruption might be approaching an end. Ash plumes from the eruption rose to up to 15,000 ft (4.5 km) altitude and are visible on satellite images.

Ash emissions were reported from Bagana volcano on Bougainville island in Papua New Guinea.

Activity of Popocatépetl volcano in Mexico has decreased to only 20 weak emissions with no or little ash content. A moderate steam plume is rising from the volcano.

2 weak explosions and mild strombolian activity was observed at Fuego volcano during the night; the lava flow has decreased to 150 m length.

Moderate activity continues at Reventador volcano in Ecuador. While direct observations are usually impossible due to cloud cover, seismic tremor pulses and explosion signals indicate frequent ash emissions and occasional mild explosions.

In Japan, Sakurajima volcano has been comparably calm as well with only few (about 1 / day average) small to moderate explosions recently.

Earthquakes have been more frequent recently at Nisyros volcano in Greece. 2 more quakes of magnitude 2.1 and 3.1 have occurred today close to the island at depths of about 10 and 20 km, respectively.

Previous news

Wed, 12 Dec 2012, 16:15
The eruption from Tolbachik volcano in Kamchatka continues. An article from the Ria Novosti news agency said that according to Russian seismologists, Tolbachik has been erupting a record of 1,200 tonnes or about 400 cubic meters of basaltic lava per second. If this number if correct, the current effusion rate would be significantly larger than the during the Great Tolbachik Fissure Eruption in 1975, when the effusion rate was about 40 m3/s on average. ... Read all
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