QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem907328
USGS iscgem907328
23 Apr 1930, 22:49
233 km E of Kuril’sk, Russia
A magnitude 6.5 mw earthquake at 35 km depth.
Published location
Where is 233 km E 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.
45.530000, 150.823000
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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
iscgem907328
Coordinates
45.53, 150.823
Network
iscgem
Significance
646