QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp000grae
USGS usp000grae
23 Dec 2008, 20:57
150 km ESE of Iwaki, Japan
A magnitude 5.4 mwc earthquake at 8.2 km depth.
Published location
Where is 150 km ESE 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.
36.462000, 142.399000
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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
usp000grae
Coordinates
36.462, 142.399
Network
us
Significance
449