QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem818320
USGS iscgem818320
25 Aug 1968, 10:07
130 km E of Noda, Japan
A magnitude 6 mw earthquake at 24.7 km depth.
Published location
Where is 130 km E of Noda, 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.
40.102000, 143.349000
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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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Catalog fields and provenance
Event ID
iscgem818320
Coordinates
40.102, 143.349
Network
iscgem
Significance
556