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USGS iscgem911500

12 Aug 1923, 11:06

148 km SE of Katsuren-haebaru, Japan

A magnitude 6.8 mw earthquake at 15 km depth.

Depth15 kmPublished hypocentral depth

Tsunami flagNot flaggedUSGS catalog flag, not a current warning

Updated25 April 2022Latest timestamp stored in this record

Published location

Where is 148 km SE of Katsuren-haebaru, 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.

25.494000, 129.031000

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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

285 km ESE of Naze, Japan

95 km SE of Yonabaru, Japan

129 km S of Naze, Japan

12 km SE of Ginowan, Japan

70 km SE of Katsuren-haebaru, Japan

143 km E of Nago, Japan

Catalog fields and provenance

Event ID

iscgem911500

Coordinates

25.494, 129.031

Network

iscgem

Significance

713