QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp0001u6e
USGS usp0001u6e
5 Apr 1983, 00:12
145 km SSW of Severo-Kuril’sk, Russia
A magnitude 6.5 mw earthquake at 51 km depth.
Published location
Where is 145 km SSW 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.
49.408000, 155.602000
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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
usp0001u6e
Coordinates
49.408, 155.602
Network
us
Significance
650