QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us2000gi03
USGS us2000gi03
31 Jul 2018, 09:42
23 km NE of Iwaki, Japan
A magnitude 5.5 mww earthquake at 10.9 km depth.
Published location
Where is 23 km NE 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.
37.178800, 141.096700
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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
us2000gi03
Coordinates
37.1788, 141.0967
Network
us
Significance
481