QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem885935
USGS iscgem885935

10 Feb 1957, 22:32

38 km NNE of Santa Monica, Philippines

A magnitude 6.6 mw earthquake at 20 km depth.

Depth20 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated26 April 2022Latest timestamp stored in this record

Published location

Where is 38 km NNE of Santa Monica, 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.

10.336000, 126.191000

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Map data © OpenStreetMap contributors

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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Nearby events with a similar magnitude

M 6.56

8 km SE of Aras-asan, Philippines

M 6.58

17 km NE of Santa Monica, Philippines

M 6.58

8 km NNE of Placer, Philippines

M 6.53

1 km SE of Taytayan, Philippines

M 6.59

42 km E of Aras-asan, Philippines

M 6.6

10 km W of Polañge, Philippines

Catalog fields and provenance
Event ID
iscgem885935
Coordinates
10.336, 126.191
Network
iscgem
Significance
662