QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp000353c
USGS usp000353c

18 May 1987, 08:27

12 km ENE of Busdi, Philippines

A magnitude 6.3 mw earthquake at 16.4 km depth.

Depth16.4 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated27 April 2022Latest timestamp stored in this record

Published location

Where is 12 km ENE of Busdi, 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.

8.302000, 125.362000

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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 6.3

20 km NE of Cagdianao, Philippines

M 6.3

30 km E of Aras-asan, Philippines

M 6.3

50 km ENE of Aras-asan, Philippines

M 6.3

22 km E of San Francisco, Philippines

M 6.3

11 km SSW of San Vicente, Philippines

M 6.3

63 km ENE of Barcelona, Philippines

Catalog fields and provenance
Event ID
usp000353c
Coordinates
8.302, 125.362
Network
us
Significance
611