QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem901291
USGS iscgem901291
19 Apr 1940, 15:39
148 km S of Severo-Kuril’sk, Russia
A magnitude 6.1 mw earthquake at 35 km depth.
Published location
Where is 148 km S 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.
49.339000, 156.250000
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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
iscgem901291
Coordinates
49.339, 156.25
Network
iscgem
Significance
567