• Costa Rica Coffee Guide

Two quakes hit southwest Costa Rica, no reports of injuries

March 6, 2009

Two moderately strong earthquakes hit Costa Rica´s Southern Zone on Wednesday. The first, a magnitude 5.7 quake, struck at 11:24 a.m. near the mouth of the Golfo Dulce, and the second, magnitude 5.9, a few kilometers farther north in the gulf, according to preliminary reports from the U.S. Geological Survey.

Local instruments, on the other hand, registered different numbers. The National Seismological Network recorded a magnitude 5.5 for the first quake, while the Volcanological and Seismological Observatory of Costa Rica (OVSICORI) issued reports with magnitude 6.3. For the second, the two institutions registered magnitudes of 5.7 and 5.8, respectively.

Although the area sits just off a major fault line, Wednesday´s quakes were both shallow – less than 30 km in depth – and, said USGS geophysicist Bruce Presgrave, the initial interpretation is that they are the results of movement along local fault lines.

“The tremor was a bit strong, but we didn´t have any damage,” said Isai Venegas, assistant manager at the Danta Corcovado Lodge, located near Golfo Dulce. Venegas, an Osa Peninsula native, added the quake was the second strongest he has ever experienced.

The Red Cross and the National Emergency Commission (CNE) reported no injuries and only very limited structural damages. Nature Air representatives also in Puerto Jiménez said the airport was unaffected.

On Jan. 8, a magnitude 6.1 earthquake hit Costa Rican territory, centered right by the Poás Volcano, a couple dozen kilometers northwest of San José. Officially, 23 people died in that quake, with another seven whose bodies were never located and are now presumed dead.

Costa Rica sits over a conflux of various tectonic plates, what seismologists qualify as a “highly seismic” territory.

Tico Times reporters Patrick Fitzgerald and Vanessa I. Garnica contributed reporting.

You may be interested

How 6 Exotic Animals in Costa Rica Got Their Names
Environment and Wildlife
6367 views
Environment and Wildlife
6367 views

How 6 Exotic Animals in Costa Rica Got Their Names

The Tico Times - March 7, 2021

When it comes to pointing out animals, some people in Costa Rican can be extremely unspecific. Sometimes it seems that…

Slothy Sunday: Restrictions are lifted, now what? See sloths, what else!
Sloth Sundays
2562 views
Sloth Sundays
2562 views

Slothy Sunday: Restrictions are lifted, now what? See sloths, what else!

Mariana Diaz / Toucan Rescue Ranch - March 7, 2021

This is officially the first week we are all allowed to drive again on both days of the weekend, how…

Sloths in Costa Rica: 11 Little Known Facts
Costa Rica wildlife
15424 views
Costa Rica wildlife
15424 views

Sloths in Costa Rica: 11 Little Known Facts

The Tico Times - March 7, 2021

Since they were first described by naturalists in the 1700s, sloths have been misunderstood. Early scientists described the slow-moving beasts…