QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp00031nv
USGS usp00031nv
14 Jan 1987, 11:03
47 km ENE of Shizunai-furukawach?, Japan
A magnitude 6.8 mw earthquake at 102 km depth.
Published location
Where is 47 km ENE of Shizunai-furukawach?, 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.
42.565000, 142.850000
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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
usp00031nv
Coordinates
42.565, 142.85
Network
us
Significance
711