QuakeFactsEvidence report · prepared 3 September 2026https://quakes99.com/entity/iscgem913900
USGS iscgem913900
3 May 1915, 03:14
240 km SSW of Severo-Kuril’sk, Russia
A magnitude 6.6 mw earthquake at 35 km depth.
Published location
Where is 240 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.
48.568000, 155.369000
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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
iscgem913900
Coordinates
48.568, 155.369
Network
iscgem
Significance
666