These two stations were opened for three months in the locations pointed out by the figure. The Quepos earthquakes were recorded by most of the digital accelerographs and several analogic ones. Stations highlighted in green correspond to digital accelerographs. GUA and MGL were used for three months only. Most important earthquakes at the beginning of this decade.
Small box locates the Central Valley.
It was a small earthquake off the coast of Quepos. The earthquake on August 20 was felt by most of the population of the country first because of its magnitude, and then because it happened in the early morning when everybody was still sleeping. In spite of its magnitude, this earthquake did not cause much damage to any city of Costa Rica. There were broken bottles reported from supermarkets in Quepos, but no damage was caused to structures there. Location of the epicentral area of the events of August 1999 on the Pacific Coast of Costa Rica.