QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp0002syk
USGS usp0002syk

16 Apr 1986, 13:52

68 km E of Shikotan, Russia

A magnitude 6.3 mw earthquake at 23.2 km depth.

Depth23.2 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated27 April 2022Latest timestamp stored in this record

Published location

Where is 68 km E of Shikotan, 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.

43.890000, 147.570000

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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 6.3

260 km E of Kuril’sk, Russia

M 6.3

169 km ESE of Kuril’sk, Russia

M 6.3

137 km E of Shikotan, Russia

M 6.3

Kuril Islands

M 6.3

279 km E of Kuril’sk, Russia

M 6.3

178 km ESE of Kuril’sk, Russia

Catalog fields and provenance
Event ID
usp0002syk
Coordinates
43.89, 147.57
Network
us
Significance
611