QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem888933
USGS iscgem888933
21 Nov 1956, 07:33
102 km E of Ishinomaki, Japan
A magnitude 6.1 mw earthquake at 41 km depth.
Published location
Where is 102 km E of Ishinomaki, 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.
38.248000, 142.457000
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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
iscgem888933
Coordinates
38.248, 142.457
Network
iscgem
Significance
576