QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem870376
USGS iscgem870376
5 Feb 1964, 11:30
48 km E of Ōarai, Japan
A magnitude 6.2 mw earthquake at 50.2 km depth.
Published location
Where is 48 km E of Ōarai, 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.
36.379000, 141.119000
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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
iscgem870376
Coordinates
36.379, 141.119
Network
iscgem
Significance
593