QQuakeFacts
USGS us6000fwdc

21 Oct 2021, 09:36

271 km SE of Shing?, Japan

A magnitude 5.5 mww earthquake at 335.8 km depth.

Depth335.8 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated22 December 2025Latest timestamp stored in this record

Published location

Where is 271 km SE of Shing?, 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.

32.113100, 138.161400

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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
us6000fwdc
Coordinates
32.1131, 138.1614
Network
us
Significance
483