As of 10:20 pm (04:20 Greenwich Mean Time) on Sunday, June 3^rd, the Observatory of Volcanology and Seismology (OVSICORI in Spanish) of the National University in Costa Rica had reported the following seismic readings:

• 02:52 – Magnitude 2.6 Richter at a depth of 12 kilometers, epicenter located 36 kilometers southwest of Estero Garita in Aguirre, province of Puntarenas.
• 05:55 – Magnitude 3.6 Richter at a depth of 21 kilometers, epicenter located 173 kilometers south of Puerto La Playa in Golfito, province of Puntarenas.
• 18:45 – Magnitude 5.3 Richter at a depth of 21 kilometers, epicenter located 21 kilometers southwest of Puerto La Playa in Golfito, province of Puntarenas.
• 21:15 – Magnitude 6.0 Richter at a depth of 3 kilometers, epicenter located 428 kilometers south of Puerto La Playa in Golfito, province of Puntarenas.

All four earthquakes had epicenters off the Pacific coast of Costa Rica, and the seismometer at Puerto La Playa has been busy. The seismic events are originating on the ocean floor and have been increasing in magnitude, although no tsunami alerts have been posted.

As usual, the National Seismological Network (RSN) of the University of Costa Rica collected social media reports on the intensity of the earthquakes. No reports came in from the early morning earthquake, as most Ticos were peacefully cradled in the arms of Morpheus at that time. The 6:45 pm earthquake, however, was felt by neighbors in Alajuela, Heredia, Aserri, Ciudad Quesada, Perez Zeledon, and other communities. Reports trickled in from Panama of greater intensity felt. Most of the reports surrounding the 6:45 pm tremor agreed that it lasted for quite some time, although the intensity was low.

The 6:45 pm tremor originated between the tectonic plates of Nazca and Coco, in the Panama Fracture Zone -an area of high seismic activity.

The 21:15 pm earthquake was registered by the United States Geological Survey at a 6.6 magnitude on the Richter scale, with an epicenter located 9 kilometers south of Panama. Scattered reports of intensity from that quake are trickling in. The typically quiet Sunday night in David and Bugaba was disrupted by the quake, which some Ticos on the Paso Canoas side of the border also felt. No damages or injuries have been reported as of this time, although some people will probably not rest easy tonight.

Sources: OVSICORI, RSN and Demetrio Abrego of TVN-2 Panama.