QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem854009
USGS iscgem854009
21 Sept 1965, 02:38
138 km WNW of Naze, Japan
A magnitude 6.7 mw earthquake at 197.6 km depth.
Published location
Where is 138 km WNW of Naze, 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.
28.952000, 128.227000
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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
iscgem854009
Coordinates
28.952, 128.227
Network
iscgem
Significance
689