QQuakeFacts
USGS usp000hvtq

11 Mar 2011, 10:35

28 km E of Iwaki, Japan

A magnitude 5.2 mb earthquake at 37.8 km depth.

Depth37.8 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated7 November 2014Latest timestamp stored in this record

Published location

Where is 28 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.

37.050000, 141.200000

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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
usp000hvtq
Coordinates
37.05, 141.2
Network
us
Significance
416