QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem901907
USGS iscgem901907

21 Apr 1939, 05:29

155 km SSW of Sovetskaya Gavan’, Russia

A magnitude 7 mw earthquake at 530 km depth.

Depth530 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated25 April 2022Latest timestamp stored in this record

Published location

Where is 155 km SSW of Sovetskaya Gavan’, Russia?

This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.

47.643000, 139.637000

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

M 7.2

16 km WSW of Uglegorsk, Russia

M 6.8

35 km SSE of Uglegorsk, Russia

M 6.4

88 km SSE of Sovetskaya Gavan’, Russia

M 5.8

48 km ESE of Lazarev, Russia

M 5.7

48 km S of Aleksandrovsk-Sakhalinskiy, Russia

M 5.6

16 km SE of Shakhtersk, Russia

Catalog fields and provenance
Event ID
iscgem901907
Coordinates
47.643, 139.637
Network
iscgem
Significance
754