QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp00023ue
USGS usp00023ue
23 Apr 1984, 22:40
263 km NNW of Kuril’sk, Russia
A magnitude 6.5 mw earthquake at 414.1 km depth.
Published location
Where is 263 km NNW 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.
47.450000, 146.692000
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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
usp00023ue
Coordinates
47.45, 146.692
Network
us
Significance
650