QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem913948
USGS iscgem913948
12 Oct 1915, 21:29
227 km ESE of Yamada, Japan
A magnitude 6.4 mw earthquake at 15 km depth.
Published location
Where is 227 km ESE of Yamada, 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.
38.895000, 144.482000
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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
iscgem913948
Coordinates
38.895, 144.482
Network
iscgem
Significance
636