Antillanca Volcanic Complex volcano (Chile) - Smithsonian / USGS Weekly Volcanic Activity Report for 11 March-17 March 2020 (New Activity / Unrest)
On 11 March SERNAGEOMIN raised the Alert Level for the Antillanca Volcanic Complex to Yellow because of increased seismicity near Casablanca stratovolcano. Volcano-tectonic (VT) earthquakes began to be recorded in August 2019 and were located about 6.3 km NE of the stratovolcano. During 31 January-1 February a total of 131 VT events were located to the W and NW; the two largest events were M 3.1 and 3.2.
mer., 11 mars 2020, 06:0006:00 AM | AUTEUR : VN
A swarm of 73 VT events were detected on 9 March with epicenters located 2.4 km NNW and a maximum local magnitude of 1.8.
Sources: Servicio Geológico Minero Argentino (SEGEMAR), Servicio Nacional de Geología y Minería (SERNAGEOMIN)
From: Global Volcanism Program, 2020. Report on Antillanca Volcanic Complex. In: Mayberry, G (ed.), Weekly Volcanic Activity Report 11 March-17 March 2020. Smithsonian Institution and US Geological Survey.