QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem887437
USGS iscgem887437
27 Oct 1957, 22:32
66 km SSE of Klyuchi, Russia
A magnitude 7.6 mw earthquake at 147.8 km depth.
Published location
Where is 66 km SSE of Klyuchi, 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.
55.750000, 161.134000
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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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Catalog fields and provenance
Event ID
iscgem887437
Coordinates
55.75, 161.134
Network
iscgem
Significance
889