Volcanos

Roundup of Global Volcanic Activity - Ongoing Activity for the week of 26 October-1 November 2016

Turrialba | Costa Rica : OVSICORI-UNA reported that daily during 27 October-1 November ash plumes rose as high as 1 km above Turrialba’s active vent. The plumes drifted in variable directions; ashfall was reported in Nubes de Coronado on 28 October.

Nevados de Chillán | Chile : Based on webcam images, the Buenos Aires VAAC reported that on 28 October an ash puff from Nevados de Chillán rose to an altitude of 4.3 km (14,000 ft) a.s.l. and quickly dissipated near the summit.

Sheveluch | Central Kamchatka (Russia) : KVERT reported that during 21-28 October lava-dome extrusion onto Sheveluch’s N flank was accompanied by strong fumarolic activity, dome incandescence, ash explosions with ash plumes as high as 7 km (23,000 ft) a.s.l., and hot avalanches. Satellite images showed a daily thermal anomaly over the dome. According to video and satellite data, ash plumes drifted just over 300 km E, N, and NW on 20, 22, and 26 October. The Aviation Colour Code remained at Orange.

Sinabung | Indonesia : Based on satellite images, wind data, and ground reports from PVMBG, the Darwin VAAC reported that on 26 and 29 October ash plumes from Sinabung rose to an altitude of 4.2 km (14,000 ft) a.s.l. and drifted SSE. During 31 October-1 November ash plumes rose to an altitude of 3.4 km (11,000 ft) a.s.l. and drifted NE.