QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp00033th
USGS usp00033th
1 Apr 1987, 02:48
52 km W of Abra Pampa, Argentina
A magnitude 7 mw earthquake at 248.7 km depth.
Published location
Where is 52 km W of Abra Pampa, Argentina?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
-22.767000, -66.205000
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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
usp00033th
Coordinates
-22.767, -66.205
Network
us
Significance
754