QQuakeFacts
USGS usp000cctn

13 Nov 2003, 22:39

56 km SSW of Shizunai-furukawach?, Japan

A magnitude 5 mwc earthquake at 74.4 km depth.

Depth74.4 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated19 December 2025Latest timestamp stored in this record

Published location

Where is 56 km SSW of Shizunai-furukawach?, 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.

41.857000, 142.117000

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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
usp000cctn
Coordinates
41.857, 142.117
Network
us
Significance
385