QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp0004xhr
USGS usp0004xhr
8 Oct 1991, 04:31
100 km ENE of Kuril’sk, Russia
A magnitude 6 mw earthquake at 145.9 km depth.
Published location
Where is 100 km ENE of 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.
45.587000, 149.049000
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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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Use local emergency authorities and the live USGS event page. This historical evidence page is not an alert service.
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Nearby events with a similar magnitude
Catalog fields and provenance
Event ID
usp0004xhr
Coordinates
45.587, 149.049
Network
us
Significance
554