QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp000hwd1
USGS usp000hwd1

12 Mar 2011, 08:52

234 km E of Namie, Japan

A magnitude 5 mb earthquake at 23.3 km depth.

Depth23.3 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated7 November 2014Latest timestamp stored in this record

Published location

Where is 234 km E of Namie, 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.

37.178000, 143.624000

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Map data © OpenStreetMap contributors

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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Nearby events with a similar magnitude

M 5

271 km ESE of Ishinomaki, Japan

M 5

272 km ESE of Ishinomaki, Japan

M 5

266 km ESE of Ishinomaki, Japan

M 5

182 km ESE of Namie, Japan

M 5

226 km E of Namie, Japan

M 5

253 km E of Namie, Japan

Catalog fields and provenance
Event ID
usp000hwd1
Coordinates
37.178, 143.624
Network
us
Significance
385