QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp0004f02
USGS usp0004f02
23 Sept 1990, 23:09
162 km SSE of ?yama, Japan
A magnitude 6.2 ms earthquake at 10 km depth.
Published location
Where is 162 km SSE of ?yama, 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.
33.189000, 138.685000
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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
usp0004f02
Coordinates
33.189, 138.685
Network
us
Significance
591