A strong 7.6 earthquake rocked Costa Rica today, rattling buildings and cutting power in some areas of the capital of San Jose.
The quake, which lasted about 15 seconds in the capital, struck 80km south of Liberia along Costa Rica's Pacific Ocean coastline, a popular tourist destination.
It was initially estimated at 7.9 magnitude before being revised downward by the US Geological Survey., which said it was at a depth of 20km.
It was not immediately clear how much damage the quake had caused and whether there were any casualties.
The Pacific Tsunami Warning Center issued a warning for Pacific coastlines from Mexico to Chile, including Costa Rica, Panama and Nicaragua.
"Earthquakes of this size have the potential to generate a widespread destructive tsunami that can affect coastlines across the entire Caribbean region," the centre said.
Chile's navy also declared a tsunami alert warning for the country's coastline following the earthquake.
The last major earthquake in Costa Rica was a 6.1 magnitude quake in 2009, which killed 40 people, according to the USGS.