QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem827052
USGS iscgem827052
7 Jan 1968, 11:12
222 km SE of Katsuura, Japan
A magnitude 6.1 mw earthquake at 21.5 km depth.
Published location
Where is 222 km SE of Katsuura, 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.
33.603000, 141.859000
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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
iscgem827052
Coordinates
33.603, 141.859
Network
iscgem
Significance
576