QQuakeFacts
USGS us7000dl6y

20 Mar 2021, 09:09

30 km E of Ishinomaki, Japan

A magnitude 7 mww earthquake at 43 km depth.

Depth43 kmPublished hypocentral depth
Tsunami flagFlaggedUSGS catalog flag, not a current warning
Updated22 December 2025Latest timestamp stored in this record

Published location

Where is 30 km E of Ishinomaki, 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.

38.451500, 141.647700

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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
us7000dl6y
Coordinates
38.4515, 141.6477
Network
us
Significance
1052