QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp0001g3f
USGS usp0001g3f
25 Sept 1981, 16:01
140 km ESE of ?funato, Japan
A magnitude 6.1 ms earthquake at 25.3 km depth.
Published location
Where is 140 km ESE of ?funato, 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.
38.499000, 143.158000
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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
usp0001g3f
Coordinates
38.499, 143.158
Network
us
Significance
572