QQuakeFacts
USGS usp00034f9

25 Apr 1987, 13:16

4 km N of Canaoalan, Philippines

A magnitude 6.9 mw earthquake at 107 km depth.

Depth107 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated27 April 2022Latest timestamp stored in this record

Published location

Where is 4 km N of Canaoalan, Philippines?

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

16.066000, 120.301000

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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
usp00034f9
Coordinates
16.066, 120.301
Network
us
Significance
732