QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem891483
USGS iscgem891483
6 Feb 1953, 13:13
99 km SSW of Kushiro, Japan
A magnitude 6.6 mw earthquake at 45.1 km depth.
Published location
Where is 99 km SSW of Kushiro, 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.
42.108000, 144.078000
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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
iscgem891483
Coordinates
42.108, 144.078
Network
iscgem
Significance
674