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article imageYellow Alert for increase in seismic activity in northern Chile

By Igor I. Solar     Apr 6, 2013 in Environment
Antofagasta - Yellow Alert was declared on Friday 5 for the town of San Pedro de Atacama, in the Antofagasta Region of Chile, because of the increase in seismic activity at the Láscar Volcano, the most active stratovolcano in the northern Chilean Andes.
According to reports (in Spanish) from the Volcano Observatory of the Southern Andes (OVDAS) belonging to Chile’s National Geology and Mining Service (Sernageomin), in the last three days there has been an increase in seismic activity at the Láscar volcano.
At least 57 seismic events have been recorded in the region, 55 of them of long duration, two of which were associated with processes of rock fracture. The seismic condition has prompted the authorities of the Geology and Mining Service of Chile to declare yellow alert for the region of San Pedro de Atacama.
The Sernageomin said it is continuously monitoring the volcano's behavior, while the National Emergency Office (ONEMI) is coordinating with members of the Civil Protection System to alert and respond promptly to any emergency situations.
Láscar volcano is 5,592 meters high and it’s located about 70 kilometers southeast of San Pedro de Atacama, a major tourist location in northern Chile. An eruption would also affect other Andean localities nearby, such as Toconao and Socaire. Lascar volcano is the most active volcano in the Chilean Andes. It has an eruptive rate with an average frequency of 5.8 years. Its last major eruption was between 18 and 26 April 1993. On that occasion it produced a plume of smoke and ash more than 10,000 meters high that reached as far as Buenos Aires, Argentina, Uruguay, Paraguay and the coast of southern Brazil. The volcano became active again in April 2006 also generating a plume of smoke and ash reaching higher than 3,000 m above the summit crater.
More about San Pedro de atacama, Northern Chile, Seismic activity, Lascar volcano, Chile
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