M7.0 earthquake near Nicoya, Guanacaste Province
17587 d ago · 23 Aug 1978, 00:38 UTC 19 km N of Nandayure, Costa Rica
What happened
A magnitude 7 earthquake struck 19 km N of Nandayure, Costa Rica on 23 Aug 1978, 00:38 UTC at a depth of 56 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 Nicoya, about 26 km away in Guanacaste Province, Costa Rica.
Timeline
First reported by USGS
16 Oct 2026, 20:46 UTC
Community
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