QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem16957832
USGS iscgem16957832
20 Dec 1904, 05:44
53 km SSE of Quepos, Costa Rica
A magnitude 7.3 mw earthquake at 10 km depth.
Published location
Where is 53 km SSE of Quepos, 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.
8.962000, -84.042000
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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
iscgem16957832
Coordinates
8.962, -84.042
Network
iscgem
Significance
818