QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp000hw18
USGS usp000hw18
11 Mar 2011, 18:59
13 km E of Arai, Japan
A magnitude 6.2 mwb earthquake at 9.3 km depth.
Published location
Where is 13 km E of Arai, 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.
37.014000, 138.376000
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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
usp000hw18
Coordinates
37.014, 138.376
Network
us
Significance
591