Roundup of Global Volcanic Activity – Ongoing Activity for the week of 11 January-17 January 2017 – Cont.
Nevados de Chillan | Chile : The Buenos Aires VAAC reported that on 13 January an ash puff recorded by a webcam rose from Nevados de Chillán and quickly dissipated. On 15 January a narrow ash plume observed in satellite images, by a pilot, and recorded by a webcam drifted W and dissipated.
Sheveluch | Central Kamchatka (Russia) : KVERT reported that during 6-13 January lava-dome extrusion onto Sheveluch’s N flank was accompanied by strong fumarolic activity, dome incandescence, ash explosions, and hot avalanches. Satellite images showed a daily thermal anomaly over the dome. The Aviation Color Code remained at Orange.
Sinabung | Indonesia : Based on PVMBG observations, webcam views, and satellite images, the Darwin VAAC reported that during 11-17 January ash plumes from Sinabung rose to altitudes of 4-7.3 km (13,000-24,000 ft) a.s.l. and drifted N, NNE, E, SE, and S.
Suwanosejima | Ryukyu Islands (Japan) : Based on JMA notices and satellite-image analyses, the Tokyo VAAC reported that on 17 January an ash plume from Suwanosejima rose to an altitude of 1.2 km (4,000 ft) a.s.l. and drifted S.