QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp000340n
USGS usp000340n
8 Apr 1987, 18:42
11 km SSW of El Rosario, Nicaragua
A magnitude 6.4 mw earthquake at 55.8 km depth.
Published location
Where is 11 km SSW of El Rosario, Nicaragua?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
11.678000, -86.401000
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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
usp000340n
Coordinates
11.678, -86.401
Network
us
Significance
630