QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem884196
USGS iscgem884196
15 Apr 1958, 03:52
138 km SW of Ciudad Cortés, Costa Rica
A magnitude 6.3 mw earthquake at 25 km depth.
Published location
Where is 138 km SW of Ciudad Cortés, 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.
7.992000, -84.328000
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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
iscgem884196
Coordinates
7.992, -84.328
Network
iscgem
Significance
613