QQuakeFacts
USGS usp000hy8u

22 Mar 2011, 11:21

101 km E of Miyako, Japan

A magnitude 5.6 mwc earthquake at 30.9 km depth.

Depth30.9 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated8 April 2022Latest timestamp stored in this record

Published location

Where is 101 km E of Miyako, 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.

39.733000, 143.113000

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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
usp000hy8u
Coordinates
39.733, 143.113
Network
us
Significance
482