QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp00093u0
USGS usp00093u0

4 Mar 1999, 08:52

69 km S of Tabiauan, Philippines

A magnitude 7.1 mwc earthquake at 33 km depth.

Depth33 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated29 April 2022Latest timestamp stored in this record

Published location

Where is 69 km S of Tabiauan, 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.

5.397000, 121.937000

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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 7

Celebes Sea

M 6.8

221 km SSE of Tabiauan, Philippines

M 6.55

26 km NNW of Lahad Datu, Malaysia

M 6.26

210 km ESE of Tarakan, Indonesia

M 6.2

7 km SSW of Lahad Datu, Malaysia

M 6.17

23 km W of Bawison, Philippines

Catalog fields and provenance
Event ID
usp00093u0
Coordinates
5.397, 121.937
Network
us
Significance
776