QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem787582
USGS iscgem787582
21 Feb 1971, 11:35
99 km WNW of San Antonio de los Cobres, Argentina
A magnitude 6.9 mw earthquake at 189 km depth.
Published location
Where is 99 km WNW of San Antonio de los Cobres, 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.
-23.780000, -67.177000
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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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Catalog fields and provenance
Event ID
iscgem787582
Coordinates
-23.78, -67.177
Network
iscgem
Significance
726