Eleven earthquakes, four of which were greater than 3.0 on the Richeter Scale, shook Costa Rica in the past week. The quakes were in different areas, mainly concentrated in the middle and south of the country.
According to the Red Sismológica Nacional (RSN) -National Seismological Network – of the University of Costa Rica, the first quake was on June 8 at 1:50am, a quake registering 3.5, located 2km southwest of Paraiso de Cartago. A minute later, twelve hours later, at 1:51pm, a 2.8 quake was registered 3km northeast of Orosi de Paraiso de Cartago.
On the same day (June 8), the ground shook again at 3:28pm, registering 3.7 some 19km southwest of Jacó; and at 5:58pm, a 4.8 some 48 km west of Cabo Velas de Santa Cruz, Guanacaste.
On June 9, a 4.1 quake hit 1km northeast of Zarcero de Alajuela at 3:18pm; and again at 6.57pm, a 4.3 magnitude quake 17 km southeast of Luarel de Corredores.
On June 10, a 3.37 magnitude quake was registered at 12:30m, located 32 km northeast of Samara de Nicoya.
On June 12, the ground shook again, the first at 12:48am, a 3.2 in Cerro Uran; and at 8:59am a 4.5 magnitude quake hit 5km east of Quepos.
On June 13, at 11:11am, a 3.8 quake was felt some 30 km southeast of Sixaola.
The RSN readings differ some from the Observatorio Vulcanológico y Sismológico de Costa Rica, Universidad Nacional (OVISCORI). Click here the OVISCORI readings.
Seismological activity is normal in Costa Rica. Experts tell us there is nothing to be alarmed.