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Volcanic activity world-wide 9-10 November 2012: Karymski, Popocatépetl, Fuego, Reventador, Nevado del Ruiz, Sakurajima, Manam, Tongariro

Saturday Nov 10, 2012 09:02 AM | BY: T

An explosion occurred from Karymski volcano in Kamchatka at 22h15 on 9 Nov GMT), producing an ash plume rising to 18,000 ft (5 km) altitude and quickly drifting south (Tokyo VAAC). 4 hours later, the ash had dissipated.

Popocatépetl, Mexico: Activity remains essentially unchanged with a slow rise of magma into the crater of the volcano where a lava dome is growing. The rate of steam and sometimes small ash emissions has dropped a bit with 32 events during 8-9 Nov. When not obscured by clouds, incandescence is visible at night and an impressive SO2 emission can be detected, typical for a volcano that ranks as one of the top SO2 producers world-wide.

Activity of Fuego volcano has been becoming more typical strombolian-style, with explosions less ashy, but richer in incandescent material. During 8-9 Nov, there were 15 strombolian explosions with ash plumes of 3-500 m height and incandescent bombs being ejected to 150-200 m height, lasting 25-40 seconds, and generating avalanches on the upper outer crater flanks. The lava flow toward Ash Canyon was 500 meters long and produced block avalanches that reached the vegetation line.

Eruptive activity at Reventador volcano (Ecuador) has been showing an increasing trend over the past week with more frequent explosions taking place. New ash emissions weres recorded earlier this morning.

Seismic activity at Nevado del Ruiz volcano has calmed down considerably, but few weak quakes and emission signals remain visible.

Sakurajima volcano continued to be unusually active during 9 Nov with 4 moderate explosions that ejected ash plumes to altitudes of 8-13,000 ft (2.4-4 km).

Manam volcano in Papua New Guinea produced a SO2 plume.

In New Zealand, Tongariro volcano's seismic activity has been calm compared to most of the previous months.
Previous news
Friday, Nov 09, 2012
A larger explosion with an ash plume rising 6-7 km from Raung volcano in East Java was reported on 8 Nov, but it seems that the report, based on a pilot observation was actually false. ... [more]
Wednesday, Nov 07, 2012
Strombolian activity has been observed at Raung volcano in East Java during a visit by two of our local expedition organizers in Indonesia. ... [more]
Monday, Nov 05, 2012
The seismic swarm in the Tjörnes Fracture Zone north off Iceland continues with little changes. About 50-100 earthquakes mostly of magnitudes of around 1-2 are being recorded daily. The largest recent one was a felt magnitude 3.8 quake at 5.6 km depth on Saturday 3 Nov. ... [more]
Friday, Nov 02, 2012
An increased number of earthquakes can be noted beneath Askja volcano in Iceland during the recent days, and the tremor signal is elevated as well, although far from alarming levels. The volcano is certainly one to watch out for. ... [more]
Wednesday, Oct 31, 2012
The seismic swarm in the Tjörnes Fracture Zone north off Iceland continues into its 10th day and the frequency of quakes has even picked up again a bit. An warning for a possible larger earthquake remains in place. ... [more]

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