QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp000dc31
USGS usp000dc31

28 Dec 2004, 23:46

259 km S of Port Blair, India

A magnitude 5 mb earthquake at 30 km depth.

Depth30 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated7 November 2014Latest timestamp stored in this record

Published location

Where is 259 km S of Port Blair, India?

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

9.344000, 93.052000

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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 5

222 km SSE of Port Blair, India

M 5

Nicobar Islands, India region

M 5

Nicobar Islands, India region

M 5

266 km ESE of Port Blair, India

M 5

248 km ENE of Port Blair, India

M 5

Nicobar Islands, India region

Catalog fields and provenance
Event ID
usp000dc31
Coordinates
9.344, 93.052
Network
us
Significance
385