Roundup of Global Volcanic Activity – Ongoing Activity for the week of 9 November-15 November 2016
Sinabung | Indonesia : Based on satellite images, wind data, and ground reports from PVMBG, the Darwin VAAC reported that during 11 and 13-14 November ash plumes from Sinabung rose to altitudes of 3.7-5.8 km (12,000-19,000 ft) a.s.l.
Sheveluch | Central Kamchatka (Russia) : KVERT reported that during 4-11 November lava-dome extrusion onto Sheveluch’s N flank was accompanied by strong fumarolic activity, dome incandescence, ash explosions with ash plumes as high as 6 km (19,700 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 as far as 143 km E during 3-4 November. The Aviation Colour Code remained at Orange.
Suwanosejima | Ryukyu Islands (Japan) :Based on JMA notices and satellite-image analyses, the Tokyo VAAC reported that during 5-6 October explosions at Suwanosejima generated ash plumes that rose to altitudes of 1.2-2.1 km (4,000-7,000 ft) a.s.l. and drifted SE, S, and W.
Tengger Caldera : Based on analyses of satellite and webcam images and information from PVMBG, the Darwin VAAC reported that during 10-12 November ash plumes from Tengger Caldera’s Bromo cone rose to an altitude of 3 km (10,000 ft) a.s.l. and drifted NW, E, and SE.
Turrialba | Costa Rica : OVSICORI-UNA reported that during 9-13 November ash plumes observed almost daily rose as high as 1 km above Turrialba’s active vent. The plumes drifted in variable directions, particularly to the SW, W, and NE, and ashfall was reported in many areas of the Valle Central. Tremor decreased on 13 November; ash emissions were not observed on 14 November.
Yasur | Vanuatu : On 11 November the Vanuatu Geohazards Observatory stated that the Alert Level for Yasur remained at 2 (on a scale of 0-4) and that explosions continued to be intense. VGO reminded residents and tourists that hazardous areas were near and around the volcanic crater, within a 395-m-radius permanent exclusion zone, and that volcanic ash and gas could reach areas impacted by trade winds.