The first was north of San José. There was one event at 3:20 a.m. reported by the Observatorio Vulcanológico y Sismológico de Costa Rica at Universidad Nacional in Heredia to be three kilometers northeast of Bajo la Hondura de Moravia. The magnitude was listed as 3.4. The Laboratorio de Ingenieria Sismica at the Universidad de Costa Rica said 3.8, as did the Red Sismológica Nacional at the same university.
That quake followed one at 10:57 Saturday night that was listed at 3.2 magnitude by the Red.
The estimated locations of the epicenters appear to be within Parque Nacional Braulio Carrillo.
The second location where quakes placed was in the vicinity of San Vito de Coto Brus near the border with Panamá.
The Red Sismológica Nacional said that one there at 8:09 a.m. had a magnitude of 4.0, one at 8:13 a.m. had a magnitude of 3.6 and that one at 8:20 a.m. registered 3.2. Another at 4:58 p.m. had a magnitude of 3.1, said the Red.
The Laboratorio de Ingenieria Sismica generally agreed on the magnitudes.