An earthquake of 6.6 degrees magnitude (MW), which hit the country yesterday at 6:45 p. m., caused great alarm.
That’s the strongest aftershock earthquake of 7.6 degrees in Nicoya (Guanacaste), on September 5.
The last movement is located 18 kilometers south of Samara, Nicoya, 20 kilometers deep. Originated by the subduction of the Cocos plate in the Caribbean in the same area last earthquake rupture.
Juan Segura, the Volcanological and Seismological Observatory of Costa Rica (OVSICORI) confirmed these data and said yesterday the strongest aftershock was the September 8 of 5.6 degrees.
Nosara was the place where the quake was felt most strongly, for 25 seconds, according to the report of the Earthquake Engineering Laboratory (LIS) at UCR. In Cóbano stations, Santa Cruz and Fraijanes was perceived as moderate.
At 7:55 p. m., the U.S. Geological Institute (USGS) reported a replication of 4.5 degrees. The 911 system reported that during the first minutes of the quake there were 80 calls from people. Of these, 39 incidents were sent to the National Commission for Risk Prevention and Emergency Response (CNE).
Neighbors of Grecia, Alajuela, especially the center of the county, reported strong movements, but no damage consideration.
There, the central office of the Red Cross was saturated by the large number of reports of breakdowns, especially in older adults.
Similar situation occurred in Santa Cruz (Guanacaste), where paramedics attended two people fainted and nerves.
In Puntarenas, the quake was felt quite strong and Monsignor Sanabria Hospital authorities evacuated the building in its entirety as part of the protocol.
In the Central Pacific area there were no significant damage or falling objects. The quake was felt moderately short and strong, not as strong as of September 5.
Fire Brigades of Parrita, Quepos and Garabito made up of damage, but there were no emergencies forced to leave the stations to the units.