QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp000hu3w
USGS usp000hu3w
5 Feb 2011, 01:56
41 km S of Katsuura, Japan
A magnitude 5.1 mwc earthquake at 65.3 km depth.
Published location
Where is 41 km S of Katsuura, 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.
34.770000, 140.352000
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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
usp000hu3w
Coordinates
34.77, 140.352
Network
us
Significance
437