QQuakeFacts
USGS usp000d66c

11 Oct 2004, 06:09

262 km SSE of Muroto-misakicho, Japan

A magnitude 5.3 mwc earthquake at 502.2 km depth.

Depth502.2 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated19 December 2025Latest timestamp stored in this record

Published location

Where is 262 km SSE of Muroto-misakicho, Japan?

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

31.168000, 135.404000

Open the interactive map ↗

What the numbers mean

Magnitude measures event size; depth locates the source below the surface. Neither value alone establishes local damage or personal risk.

Need a current safety answer?

Use local emergency authorities and the live USGS event page. This historical evidence page is not an alert service.

Open the USGS event →

Continue exploring

Nearby events with a similar magnitude

Catalog fields and provenance
Event ID
usp000d66c
Coordinates
31.168, 135.404
Network
us
Significance
432