QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp000hxv7
USGS usp000hxv7
18 Mar 2011, 23:49
20 km NW of Kitaibaraki, Japan
A magnitude 5.1 mwc earthquake at 40.5 km depth.
Published location
Where is 20 km NW of Kitaibaraki, 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.
36.941000, 140.615000
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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
usp000hxv7
Coordinates
36.941, 140.615
Network
us
Significance
400