A magnitude 6.5 earthquake has hit 16 kilometres off the coast of Costa Rica, near the capital of San Jose, at 3.28pm (NZT).
The earthquake hit at a depth of 19.8km according to United States Geological Survey.
The US National Weather Service have reported no Pacific-wide tsunami threat.
There have been no immediate reports of deaths or injuries.
The US Geological Survey says the earthquake was centred along Costa Rica's Pacific Coast about 15 kilometres southeast of Jaco, which is about 100 kilometres southwest of the capital of San Jose.
The quake was at a depth of about 20 kilometres.
Matt Hogan was at home in Punta Uvita, about a 90-minute drive down the coast from the epicenter when the earthquake hit.
He says the shaking whipped up two-foot waves in his swimming pool and knocked over glasses and containers in the kitchen.
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