December 31, 2012. According to the Costa Rican Volcanology and Seismology Observatory (OVSICORI), After a magnitude 7.6 earthquake that occurred on September 5 2012 year, the country recorded the highest level of seismic activity, which they saw in the last 62.
Strongest earthquake in the history of Costa Rica took place in 1950 in Nicoya (Nicoya), a magnitude of 7.8, and then 2012 earthquake that struck the same area of 7.6 points.
After earthquake on September 5th OVSICORI reported 75 earthquakes that were felt residents for 4 months after the main seismic event.
2010 reported a total of 6,245 earthquakes in 2011 — 5483, and in 2012 year, bringing the total to 11,049.
Translation: Alex Crete