M7.6 earthquake near Alajuela, Alajuela Province
31711 d ago · 21 Dec 1939, 20:54 UTC 4 km WNW of Atenas, Costa Rica
What happened
A magnitude 7.6 earthquake struck 4 km WNW of Atenas, Costa Rica on 21 Dec 1939, 20:54 UTC at a depth of 25 km.
Earthquakes of this size are classed as Major. Can cause serious damage over large areas. This was a shallow earthquake, which tends to be felt more strongly at the surface.
The nearest town in our records is Alajuela, about 22 km away in Alajuela Province, Costa Rica.
Timeline
First reported by USGS
16 Oct 2026, 20:46 UTC
Community
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