QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp0000w5v
USGS usp0000w5v
23 Aug 1978, 01:38
19 km N of Nandayure, Costa Rica
A magnitude 7 ms earthquake at 56 km depth.
Published location
Where is 19 km N of Nandayure, Costa Rica?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
10.204000, -85.222000
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What the numbers mean
Magnitude measures event size; depth locates the source below the surface. Neither value alone establishes local damage or personal risk.
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Use local emergency authorities and the live USGS event page. This historical evidence page is not an alert service.
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Catalog fields and provenance
Event ID
usp0000w5v
Coordinates
10.204, -85.222
Network
us
Significance
754