QQuakeFacts
USGS iscgem857881

20 Apr 1965, 00:42

0 km SSE of Yaizu, Japan

A magnitude 6.1 mw earthquake at 36 km depth.

Depth36 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated19 December 2025Latest timestamp stored in this record

Published location

Where is 0 km SSE of Yaizu, 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.

34.866000, 138.321000

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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
iscgem857881
Coordinates
34.866, 138.321
Network
iscgem
Significance
565