QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgemsup611451667
USGS iscgemsup611451667
20 Jan 1905, 18:00
18 km WSW of Nicoya, Costa Rica
A magnitude 6.7 mw earthquake at 20 km depth.
Published location
Where is 18 km WSW of Nicoya, 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.
10.082000, -85.608000
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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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Nearby events with a similar magnitude
Catalog fields and provenance
Event ID
iscgemsup611451667
Coordinates
10.082, -85.608
Network
iscgemsup
Significance
699