QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem881316
USGS iscgem881316

30 Jan 1959, 22:16

50 km N of Kushiro, Japan

A magnitude 6.4 mw earthquake at 25 km depth.

Depth25 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated26 April 2022Latest timestamp stored in this record

Published location

Where is 50 km N of Kushiro, 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.

43.429000, 144.467000

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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

M 6.38

45 km NNE of Kushiro, Japan

M 6.34

102 km WSW of Kuril’sk, Russia

M 6.45

16 km SSW of Sarabetsu, Japan

M 6.46

58 km SSW of Kushiro, Japan

M 6.3

46 km S of Shikotan, Russia

M 6.3

40 km E of Kushiro, Japan

Catalog fields and provenance
Event ID
iscgem881316
Coordinates
43.429, 144.467
Network
iscgem
Significance
626