QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp0002hz9
USGS usp0002hz9
21 Aug 1985, 12:26
32 km SW of Puerto Santa, Peru
A magnitude 6.4 mw earthquake at 56.9 km depth.
Published location
Where is 32 km SW of Puerto Santa, Peru?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
-9.159000, -78.887000
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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
usp0002hz9
Coordinates
-9.159, -78.887
Network
us
Significance
630