Volcanos

Roundup of Global Volcanic Activity – New Activity for the week of 9 November-15 November 2016

Copahue | Central Chile-Argentina border : Based on satellite and webcam images, the Buenos Aires VAAC reported that during 9-12 November gas, steam, and ash plumes rose from Copahue to altitudes of 3.3-3.6 km (11,000-12,000 ft) a.s.l. and drifted SE, E, and NE.

Kerinci | Indonesia : Based on satellite data, the Darwin VAAC reported that on 15 November an ash plume from Kerinci rose to an altitude of 4.3 km (14,000 ft) a.s.l. and drifted 30 km NE.

Langila | New Britian (Papua New Guinea) : Based on analyses of satellite imagery and wind data, the Darwin VAAC reported that on 13 November an ash plume from Langila rose to an altitude of 2.1 km (7,000 ft) a.s.l. and drifted 55 km N.

Sabancaya | Peru : A Technical and Scientific Committee for volcanic risk management of the Arequipa region is comprised of five groups including IGP’s Observatorio Vulcanológico del Sur (OVS) and INGEMMET’s Observatorio Vulcanológico (OVI) and have been monitoring Sabancaya since 2013. The committee reported that new ash-bearing explosions began on 6 November. The explosions, detected at 2126, 2127, and 2149, produced ash plumes that rose 1.5 km above the crater rim and drifted E.

The frequency of hybrid earthquakes increased noticeably in early October and in the hours prior to the 6 November explosions. Volcanic gas emissions had also increased significantly, with values as high as 7,173 tons/day on 23 October. The MIROVA system had detected a thermal anomaly at the volcano on 2 November.

During 6-13 November ash-and-gas emissions from explosions and from periods in between explosions rose as high as 3 km above the crater. An event at 1320 on 8 November generated a significant ash plume that rose 2.4 km above the crater rim with ash dispersing within a 5-km radius. During 9-10 November ash plumes rose as high as 2 km and drifted 30-35 km SE, E, and NE, producing ashfall in the villages of Valle del Colca to the NE. On 11 November an explosion generated an ash plume that rose 3 km and drifted 40 km E and NE. An ash plume from an explosion the next day rose 2 km and drifted 30 km NE.

Ubinas | Peru : The Comité Científico de Monitoreo Permanente del volcán Ubinas, made up of scientists from IGP’s Observatorio Vulcanológico del Sur (OVS) and INGEMMET’s Observatorio Vulcanológico (OVI), reported that on 8 November three explosions at Ubinas (at 2126, 2127, and 2149) generated an ash plume that rose 1.5 km above the crater rim and drifted E.

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