QQuakeFacts
USGS usp00010b9

28 Apr 1979, 12:38

62 km W of Copiapó, Chile

A magnitude 6.1 ms earthquake at 23 km depth.

Depth23 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated19 December 2025Latest timestamp stored in this record

Published location

Where is 62 km W of Copiapó, Chile?

This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.

-27.462000, -70.953000

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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
usp00010b9
Coordinates
-27.462, -70.953
Network
us
Significance
572