QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem849501
USGS iscgem849501
23 Mar 1966, 01:04
51 km S of Yonakuni, Japan
A magnitude 6.2 mw earthquake at 45 km depth.
Published location
Where is 51 km S of Yonakuni, 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.
24.006000, 122.958000
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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
iscgem849501
Coordinates
24.006, 122.958
Network
iscgem
Significance
591