Significant earthquake swarm near the coast of Valparaiso, Chile

– April 23, 2017

A series of moderate to strong earthquakes were registered near the coast of Valparaiso, Chile on April 22 and 23, 2017. EMSC is reporting at least 25 earthquakes since 22:46 UTC on Saturday, April 22, 2017, with the strongest registered as M6.0 at a depth 20 km (12.4 miles). USGS is reporting this one as M5.9 at a depth of 9.8 km (5.6 miles).

The quakes are occurring some 30 km (18.6 miles) west of Valparaiso (population 283 000) and 130 km (80.7 miles) west of capital Santiago (population 4 838 00) at depths between 10 and 30 km (6.2 – 18.6 miles). There are about 1 337 405 people living within 100 km (62 miles).

ONEMI director, Ricardo Toro, said seven earthquakes were felt by population between the regions of Coquimbo and O’Higgins. The maximum perceived intensity was VI on Mercalli scale in the communes of Valparaíso, Puchuncaví, Casablanca, San Antonio and Villa Alemana, in the Valparaíso Region and in the commune of Tiltil, in the Metropolitan Region.

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