QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp000hyb2
USGS usp000hyb2
22 Mar 2011, 22:13
18 km WSW of Iwaki, Japan
A magnitude 5.5 mb earthquake at 40.7 km depth.
Published location
Where is 18 km WSW of Iwaki, 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, 140.679000
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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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Nearby events with a similar magnitude
Catalog fields and provenance
Event ID
usp000hyb2
Coordinates
37.014, 140.679
Network
us
Significance
465