QQuakeFacts
USGS iscgem856602

3 May 1965, 11:01

3 km SE of San Marcos, El Salvador

A magnitude 6 mw earthquake at 14.2 km depth.

Depth14.2 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated19 December 2025Latest timestamp stored in this record

Published location

Where is 3 km SE of San Marcos, El Salvador?

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

13.640000, -89.164000

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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
iscgem856602
Coordinates
13.64, -89.164
Network
iscgem
Significance
561