QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem902029
USGS iscgem902029
18 Jun 1939, 17:46
6 km WNW of Tucurrique, Costa Rica
A magnitude 6 mw earthquake at 15 km depth.
Published location
Where is 6 km WNW of Tucurrique, 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.
9.875000, -83.782000
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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
iscgem902029
Coordinates
9.875, -83.782
Network
iscgem
Significance
561