QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp000hy7j
USGS usp000hy7j

22 Mar 2011, 03:38

55 km E of ?hara, Japan

A magnitude 5.7 mww earthquake at 20 km depth.

Depth20 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated8 April 2022Latest timestamp stored in this record

Published location

Where is 55 km E of ?hara, 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.

35.205000, 140.997000

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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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Continue exploring

Nearby events with a similar magnitude

M 5.7

71 km SSE of Shimoda, Japan

M 5.7

61 km E of ?hara, Japan

M 5.7

90 km SSE of Shimoda, Japan

M 5.7

64 km SSE of Shimoda, Japan

M 5.7

10 km E of Hasaki, Japan

M 5.7

110 km ESE of Namie, Japan

Catalog fields and provenance
Event ID
usp000hy7j
Coordinates
35.205, 140.997
Network
us
Significance
500