Volcanos

Roundup of Global Volcanic Activity:

Klyuchevskoy (Kamchatka): Strong eruptive activity continues. VAAC Tokyo reports an ash plume rising to estimated 33,000 ft (10 km) altitude, i.e. about 5 km tall above the volcano, and drifting SW. Aircraft should avoid the airspace near as well many miles southwest and east of the volcano. VAAC Tokyo publishes regular updates about the observed and predicted extent of the ash plume.

Galeras (Colombia): Surface and seismic activity have been low recently. A 3.8 magnitude earthquake at 5.5 km depth and 7 km NE of the volcano occurred yesterday at 17:13 local time. The earthquake was felt in Pasto, and the municipalities of Nariño and La Florida. This event was preceded by 14 earthquakes of smaller magnitude (less than 2.6) recorded between 12:56 am and 16:40 pm, located as well on the NE sector of the volcano at depths 1.2 and 7 km.

Cumbal (Colombia): Seismic unrest continues at low levels with little changes over the past weeks and months. GEOMINAS keeps the volcano at yellow alert level.

Sotará (Colombia): Low-level seismic unrest continues with no significant changes to report over the past months.

Sabancaya (Peru): Seismic unrest continued through Sep-Oct including occasional swarms of volcanic-tectonic quakes (such as on 10 Oct), but overall earthquake activity has been showing a slowly decreasing trend. The volcano remains to be closely monitored.

Ubinas (Peru): Surface and seismic activity have calmed down recently and are near background levels.