QQuakeFacts
USGS usp000hwz0

13 Mar 2011, 19:59

92 km E of Iwaki, Japan

A magnitude 5.2 mwc earthquake at 25.4 km depth.

Depth25.4 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated22 December 2025Latest timestamp stored in this record

Published location

Where is 92 km E of Iwaki, 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.

36.921000, 141.906000

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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
usp000hwz0
Coordinates
36.921, 141.906
Network
us
Significance
416