QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp000azmg
USGS usp000azmg

4 Mar 2002, 20:21

Bonin Islands, Japan region

A magnitude 5.5 mwc earthquake at 45.1 km depth.

Depth45.1 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated19 December 2025Latest timestamp stored in this record

Published location

Where is Bonin Islands, Japan region?

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

28.446000, 143.275000

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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 5.5

Bonin Islands, Japan region

M 5.4

Izu Islands, Japan region

M 5.4

Bonin Islands, Japan region

M 5.6

Bonin Islands, Japan region

M 5.7

Bonin Islands, Japan region

M 5.3

Bonin Islands, Japan region

Catalog fields and provenance
Event ID
usp000azmg
Coordinates
28.446, 143.275
Network
us
Significance
465