QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp000hw77
USGS usp000hw77
12 Mar 2011, 01:17
127 km ESE of Ishinomaki, Japan
A magnitude 5.4 mb earthquake at 20.8 km depth.
Published location
Where is 127 km ESE of Ishinomaki, 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.
38.053000, 142.677000
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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
usp000hw77
Coordinates
38.053, 142.677
Network
us
Significance
449