QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp00027cb
USGS usp00027cb
14 Sept 1984, 00:48
23 km E of Gero, Japan
A magnitude 6.2 mw earthquake at 10 km depth.
Published location
Where is 23 km E of Gero, 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.
35.789000, 137.488000
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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
usp00027cb
Coordinates
35.789, 137.488
Network
us
Significance
591