More earthquakes hit the border area between Costa Rica and Panama / VolcanoDiscovery

More earthquakes hit the border area between Costa Rica and Panama

Friday, September 04, 2020 9:50 PM | BY: EARTHQUAKEMONITOR

Today’s earthquakes in the Costa Rica – Panama border region

A series of earthquakes hit the southern border area between Costa Rica and Panama today, the two strongest of magnitudes around 5.5 and 5.0 at 11:45 and 11:48 local time.
The epicenters were 15 km west of Puerto Armuelles (Panama) and 4 km north of Laurel in Costa Rica.
Both earthquakes were widely felt at a distance of up to 200 km. Strong tremors were felt in areas close (within 20-30 km) to the epicenter, while mild to very weak tremors could be felt in a much wider area.
So far, there have been no reports of any major damage or injuries related to the earthquakes.
In addition, 8 aftershocks with magnitudes between 3.3 and 4.6 have been registered in the area, all felt as well.
The obvious concern is whether the cluster of earthquakes will continue and lead to a larger earthquake or whether most of the seismic stress has been released.
Costa Rica and Panama are in one of the most seismically active parts of the world, as they are just east of the tectonic boundary where the Cocos oceanic plate subducts (descends) below the Caribbean plate, at a speed of 75 mm by year. The collision between the two constantly generates stress along the margin, which is released in many small and sometimes larger earthquakes of magnitudes 6-7. One of the largest earthquakes in the area in recent decades was of magnitude 7.1 on April 3, 1983, about 50 km northwest of Costa Rica.

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Earthquake data:

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