QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgemsup16958145
USGS iscgemsup16958145

4 May 1911, 23:36

95 km NNE of Ozernovskiy, Russia

A magnitude 7.4 mB earthquake at 150 km depth.

Depth150 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated22 August 2025Latest timestamp stored in this record

Published location

Where is 95 km NNE of Ozernovskiy, 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.

52.223000, 157.250000

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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 7.24

Kuril Islands

M 7.2

97 km NNE of Ozernovskiy, Russia

M 7.2

38 km ESE of Severo-Kuril’sk, Russia

M 7.03

285 km S of Severo-Kuril’sk, Russia

M 7.83

266 km SSW of Severo-Kuril’sk, Russia

M 6.9

251 km SSW of Severo-Kuril’sk, Russia

Catalog fields and provenance
Event ID
iscgemsup16958145
Coordinates
52.223, 157.25
Network
iscgemsup
Significance
842