Volcanic activity world-wide 22 October 2012 [1]

Source: VolcanoDiscovery.com [2], By T, 10/22/12

Turrialba Volcano

The seismic swarm at the Tjörnes Fracture Zone [3] continues but at lower pace.

Popocatépetl [4] had 85 weak to moderate explosions during 21-22 October, a bit less than previously. Only some of them were accompanied by fine ash emissions. Small earthquakes continue to be recorded under the volcano and a strong SO2 plume is regularly visible on satellite data.

An SO2 plume from Turrialba [5] volcano in Costa Rica could be seen on yesterday's NOAA SO2 monitoring image for Central America, suggesting elevated degassing activity.

Fuego volcano [6]'s lava flow is 800 m long and some weak explosive activity has resumed.

Occasional ash emissions with plumes up to 1200 m high have been observed and photographed at Galeras volcano [7] in Colombia on 19 and 21 October. Seismic activity, however, remains low with only few occasional events visible on the seismograms.

Raung volcano [8] in East Java shows increasing seismic activity including strong volcanic tremor and the alert level of the volcano was raised to 3 out of 4 (Siaga, "eruption warning"). The Indonesian Volcanological Survey recommends not to approach the volcano's summit within 3 km.

Strong SO2 emissions are visible from Bagana volcano [9] in Papua New Guinea.