islands COSTA RICA – The Costa Rica News (TCRN) – Volcanologists of the National Seismological Network (RSN) have begun early research on the Chato volcano, located southeast of Poas volcano, to find out information such as its last eruption. RSN volcanologist, Gino Gonzalez, said that measurements of the temperature of the lagoon taken by sonar instrumentation, determining that the surface of the lake is about 19°C and approximately 6 meters deeper the temperature of the lagoon varies drastically. “It’s a volcano which very little is known about its historical activity, so we have seismic stations for periodic sampling and we are starting a campaign to closely monitor it every six months,” Gonzalez said. More