QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem17248699
USGS iscgem17248699
23 Jun 1931, 07:14
97 km NE of Hasaki, Japan
A magnitude 6.5 mw earthquake at 25 km depth.
Published location
Where is 97 km NE of Hasaki, 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.
36.239000, 141.722000
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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
iscgem17248699
Coordinates
36.239, 141.722
Network
iscgem
Significance
640