QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem902279
USGS iscgem902279
23 Dec 1939, 17:11
18 km SSE of Paquera, Costa Rica
A magnitude 6.1 mw earthquake at 35 km depth.
Published location
Where is 18 km SSE of Paquera, 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.
9.657000, -84.896000
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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
iscgem902279
Coordinates
9.657, -84.896
Network
iscgem
Significance
574