QQuakeFacts
USGS usp000j8f7

23 Sept 2011, 14:12

4 km WSW of ?tsuchi, Japan

A magnitude 5.2 mwc earthquake at 61.7 km depth.

Depth61.7 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated8 April 2022Latest timestamp stored in this record

Published location

Where is 4 km WSW of ?tsuchi, 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.

39.352000, 141.850000

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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
usp000j8f7
Coordinates
39.352, 141.85
Network
us
Significance
416