QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem892611
USGS iscgem892611
9 Mar 1952, 17:03
110 km ESE of Shizunai-furukawach?, Japan
A magnitude 6.9 mw earthquake at 49.5 km depth.
Published location
Where is 110 km ESE of Shizunai-furukawach?, 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.
41.831000, 143.525000
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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
iscgem892611
Coordinates
41.831, 143.525
Network
iscgem
Significance
732