QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp000hwmf
USGS usp000hwmf
12 Mar 2011, 21:58
47 km SE of Kamaishi, Japan
A magnitude 5.4 mwc earthquake at 44.9 km depth.
Published location
Where is 47 km SE of Kamaishi, 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.
39.030000, 142.310000
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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
usp000hwmf
Coordinates
39.03, 142.31
Network
us
Significance
449