QQuakeFacts
USGS usp000atcy

24 Nov 2001, 02:56

30 km N of Hirara, Japan

A magnitude 5.1 mwc earthquake at 73.8 km depth.

Depth73.8 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated19 December 2025Latest timestamp stored in this record

Published location

Where is 30 km N of Hirara, 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.

25.077000, 125.256000

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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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Catalog fields and provenance
Event ID
usp000atcy
Coordinates
25.077, 125.256
Network
us
Significance
400