Skip to content

USGS iscgem876175

26 Feb 1961, 18:10

18 km NNE of Nichinan, Japan

A magnitude 7.5 mw earthquake at 35 km depth.

Depth35 kmPublished hypocentral depth

Tsunami flagNot flaggedUSGS catalog flag, not a current warning

Updated26 April 2022Latest timestamp stored in this record

Published location

Where is 18 km NNE of Nichinan, 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.

31.739000, 131.475000

Open the interactive map ↗

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.

Need a current safety answer?

Use local emergency authorities and the live USGS event page. This historical evidence page is not an alert service.

Open the USGS event →

Continue exploring

Nearby events with a similar magnitude

18 km SE of Honmachi, Japan

60 km ESE of Nobeoka, Japan

78 km S of Naze, Japan

152 km ESE of Koshima, Japan

22 km N of Nishinoomote, Japan

29 km ESE of Takanabe, Japan

Catalog fields and provenance

Event ID

iscgem876175

Coordinates

31.739, 131.475

Network

iscgem

Significance

875