QQuakeFacts
USGS usp000hvp4

11 Mar 2011, 06:07

108 km ESE of Kitaibaraki, Japan

A magnitude 6.4 mb earthquake at 32.3 km depth.

Depth32.3 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated8 April 2022Latest timestamp stored in this record

Published location

Where is 108 km ESE of Kitaibaraki, 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.

36.419000, 141.876000

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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
usp000hvp4
Coordinates
36.419, 141.876
Network
us
Significance
630