QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem872275
USGS iscgem872275
8 May 1963, 11:22
50 km E of ?arai, Japan
A magnitude 6.3 mw earthquake at 46.5 km depth.
Published location
Where is 50 km E of ?arai, 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.
36.296000, 141.142000
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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
iscgem872275
Coordinates
36.296, 141.142
Network
iscgem
Significance
601