QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp0003tuk
USGS usp0003tuk

11 Apr 1989, 04:56

255 km ESE of Severo-Kuril’sk, Russia

A magnitude 6.8 mw earthquake at 16.4 km depth.

Depth16.4 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated28 April 2022Latest timestamp stored in this record

Published location

Where is 255 km ESE of Severo-Kuril’sk, 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.

49.488000, 159.185000

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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 6.8

123 km E of Severo-Kuril’sk, Russia

M 6.79

54 km SSE of Vilyuchinsk, Russia

M 6.83

123 km SE of Petropavlovsk-Kamchatsky, Russia

M 6.88

119 km E of Ozernovskiy, Russia

M 6.88

102 km E of Severo-Kuril’sk, Russia

M 6.7

237 km ESE of Petropavlovsk-Kamchatsky, Russia

Catalog fields and provenance
Event ID
usp0003tuk
Coordinates
49.488, 159.185
Network
us
Significance
711