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USGS iscgem901531

13 Aug 1940, 16:36

74 km NW of Hiratach?, Japan

A magnitude 7 mw earthquake at 10 km depth.

Depth10 kmPublished hypocentral depth

Tsunami flagNot flaggedUSGS catalog flag, not a current warning

Updated9 May 2022Latest timestamp stored in this record

Published location

Where is 74 km NW of Hiratach?, 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.

35.955000, 132.290000

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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

6 km ESE of Kumamoto, Japan

31 km SSW of Hikari, Japan

31 km SW of Yawatahama, Japan

22 km SW of Nagasaki, Japan

36 km E of Nobeoka, Japan

28 km NNW of Maebaru-ch??, Japan

Catalog fields and provenance

Event ID

iscgem901531

Coordinates

35.955, 132.29

Network

iscgem

Significance

752