The U.S. Geological Survey measured the quake at magnitude 5.8 in the Richter scale, placing the epicenter 81 kilometers south of San Jose in the Pacific Ocean.
An earthquake of 5.8 magnitude on the Richter scale shook Costa Rica at 4:55 am local time (5:55 a.m. Eastern Standard, New York, Toronto), as reported by the USGS and the Seismological Observatory of Costa Rica (OVSICORI).
The quake’s epicenter was located 34 kilometers southeast of Estero Garita, district of Aguirre, in the coastal province of Puntarenas, at a depth of 28 kilometers.
The quake was perceived as "strong" at various points in Costa Rica, but so far there are no reports of injured people or damage to infrastructure. However, in several regions, especially in the region of the epicenter, residents reported that the quake was strong enough to cause the fall of domestic objects. "It was felt in most of the country because of the shallow depth. There was a great amount of energy released. It is a very active area. We must remain calm, we are exposed to events like these and we must be prepared,” said OVSICORI expert Juan Segura to local media (Nación.com in Spanish).
The intensity of the quake caused alarm in the Pacific region and in the population of cities in the Central Valley, where are located the four main urban centers, the capital San José, Alajuela, Cartago and Heredia. The quake also was felt in the province of Limon on the Caribbean, and even in the southern provinces of Panama, bordering Costa Rica.