QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp0001bjs
USGS usp0001bjs
2 Jan 1981, 15:39
163 km NW of Naze, Japan
A magnitude 6.1 mb earthquake at 242 km depth.
Published location
Where is 163 km NW of Naze, 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.
29.244000, 128.136000
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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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Nearby events with a similar magnitude
Catalog fields and provenance
Event ID
usp0001bjs
Coordinates
29.244, 128.136
Network
us
Significance
572