QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp000hy27
USGS usp000hy27
20 Mar 2011, 14:48
46 km SSE of Hasaki, Japan
A magnitude 5.1 mwc earthquake at 36.4 km depth.
Published location
Where is 46 km SSE of Hasaki, 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.
35.330000, 140.961000
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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
usp000hy27
Coordinates
35.33, 140.961
Network
us
Significance
400