QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem899803
USGS iscgem899803
12 Apr 1943, 06:14
95 km SSE of Yonakuni, Japan
A magnitude 6.3 mw earthquake at 35 km depth.
Published location
Where is 95 km SSE 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.
23.707000, 123.438000
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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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Nearby events with a similar magnitude
Catalog fields and provenance
Event ID
iscgem899803
Coordinates
23.707, 123.438
Network
iscgem
Significance
607