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USGS iscgem901149

7 Jan 1940, 03:22

161 km SE of Katsuura, Japan

A magnitude 6 mw earthquake at 15 km depth.

Depth15 kmPublished hypocentral depth

Tsunami flagNot flaggedUSGS catalog flag, not a current warning

Updated26 April 2022Latest timestamp stored in this record

Published location

Where is 161 km SE of Katsuura, 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.

33.995000, 141.386000

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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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Nearby events with a similar magnitude

131 km ESE of Namie, Japan

76 km SE of Shimoda, Japan

45 km ESE of Hitachi, Japan

229 km SSE of Tateyama, Japan

7 km NNE of Kisarazu, Japan

96 km SSE of Shimoda, Japan

Catalog fields and provenance

Event ID

iscgem901149

Coordinates

33.995, 141.386

Network

iscgem

Significance

554