Chiles-Cerro Negro volcano (Colombia-Ecuador) - Smithsonian / USGS Weekly Volcanic Activity Report for 28 November-4 December 2018 (Continuing Activity)
Servicio Geológico Colombiano (SGC) reported that a seismic swarm below Cerro Negro de Mayasquer and Chiles volcanoes began at 0100 on 3 December. The events were classified as volcano-tectonic, with epicenters located up to 6 km from the summit of Chiles volcano, at depths of less than 8 km (4.7 km a.s.l.). The maximum local magnitude was 2.3.
mer, 28 nov 2018, 06:0006:00 AM | AUTORE: VN
From the beginning of the swarm until the time of the report posting (1640) there were about 5,400 recorded events, making the swarm the largest since 2015. The report also noted that seismicity had gradually been increasing in recent weeks. The Alert Level remained at Yellow (level 2 of 4).
Source: Servicio Geológico Colombiano (SGC)
From: Global Volcanism Program, 2018. Report on Chiles-Cerro Negro. In: Mayberry, G (ed.), Weekly Volcanic Activity Report 28 November-4 December 2018. Smithsonian Institution and US Geological Survey.
Sun, 24 May 2015, 12:15
Seismic activity at the volcano has been decreasing during the past months. No other signs of volcanic unrest have been detected. ... Read all
Mon, 19 Jan 2015, 10:58
Seismic activity remains high with an average of almost 1200 small quakes detected on a daily basis under the Chiles volcano. Read all
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