Earthquakes and Volcanoes

Another unexplained rumble was reported from Desamparados on January 13, 2012, days after the widely discussed Costa Rica sound.

Costa Rica’s unexplained January 2012 sound prompted apocalyptic theories, just as Turrialba volcano emitted ash on January 12.

Fireworks, earthquakes and aircraft were considered after Costa Rica’s mysterious January 2012 boom, but no cause was confirmed.

A mysterious overnight boom startled Costa Ricans in January 2012. Seismologists found no matching quake or volcanic event.

A July 2011 earthquake left Upala’s Guacalito River briefly dry. Water returned the next day, but the event sparked wider seismic speculation.