Costa Rican officials: A strong earthquake could still occur in Guanacaste

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Tico Times - 9/11/12

Experts confirmed the Sept. 5 magnitude-7.6 earthquake was the ‘Big One’ they’ve been expecting, but the fault rupture was only of 50 percent.

After a series of analyses conducted in the northwestern province of Guanacaste, experts from the Volcanological and Seismological Observatory of Costa Rica (Ovsicori) reported Tuesday that another quake of equal or greater magnitude could occur in Nicoya Peninsula, but predicting when it would happen is “impossible .”

Marino Protti, Ovsicori’s lead scientist, explained that the magintude-7.6 earthquake on Sept. 5 caused a 40 percent slip and an inclination of 1.8 meters on the fault located in Nicoya.

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