QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem892594
USGS iscgem892594
7 Mar 1952, 18:16
78 km SSE of Nemuro, Japan
A magnitude 6.1 mw earthquake at 30 km depth.
Published location
Where is 78 km SSE of Nemuro, 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.
42.721000, 146.086000
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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
iscgem892594
Coordinates
42.721, 146.086
Network
iscgem
Significance
563