QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp00032da
USGS usp00032da

11 Feb 1987, 17:42

8 km NW of Bol’shoy Kamen’, Russia

A magnitude 6.1 mw earthquake at 499.1 km depth.

Depth499.1 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated27 April 2022Latest timestamp stored in this record

Published location

Where is 8 km NW of Bol’shoy Kamen’, 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.

43.169000, 132.286000

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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 6.1

35 km WNW of Dongning, China

M 6

15 km E of Slavyanka, Russia

M 6.2

6 km E of Knevichi, Russia

M 6.3

13 km NNW of Zarubino, Russia

M 5.8

13 km NW of Zarubino, Russia

M 5.8

21 km ENE of Chaihe, China

Catalog fields and provenance
Event ID
usp00032da
Coordinates
43.169, 132.286
Network
us
Significance
572