QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem913950
USGS iscgem913950
4 Nov 1915, 03:12
93 km ESE of Kamaishi, Japan
A magnitude 6.3 mw earthquake at 35 km depth.
Published location
Where is 93 km ESE of Kamaishi, Japan?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
39.051000, 142.907000
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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
iscgem913950
Coordinates
39.051, 142.907
Network
iscgem
Significance
611