QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp000j5ua
USGS usp000j5ua
1 Aug 2011, 15:58
20 km E of ?yama, Japan
A magnitude 5.9 mww earthquake at 13 km depth.
Published location
Where is 20 km E 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.
34.631000, 138.433000
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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
usp000j5ua
Coordinates
34.631, 138.433
Network
us
Significance
657