QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem858655
USGS iscgem858655
16 Mar 1965, 16:46
121 km ENE of Kuji, Japan
A magnitude 6.4 mw earthquake at 35.1 km depth.
Published location
Where is 121 km ENE of Kuji, 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.
40.738000, 143.012000
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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
iscgem858655
Coordinates
40.738, 143.012
Network
iscgem
Significance
630