DEVELOPING: Earthquake swarm detected under dormant Parinacota volcano, Chile-Bolivia

A seismic swarm has been detected under Parinacota stratovolcano along the Chile-Bolivia border on June 6, 2018, Sernageomin reports. There are no known historical eruptions of this volcano. However, Helium surface-exposure dates have been obtained for eruptions during the past 2 000 years.  The

swarm started at 21:03 UTC and consisted of 90 VT (volcano-tectonic) earthquakes in 85 minutes. The largest was ML2.3 located 6 km (3.7 miles) southwest of the crater at a depth of 10.6 km (6.6 miles). The alert level remains at Green. Volcán Parinacota is the southernmost and youngest of a pair of volcanoes forming the Nevados de Payachata group along the Chile-Bolivia border. READ MORE