QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem892258
USGS iscgem892258
5 Dec 1953, 09:41
146 km SE of Katsuura, Japan
A magnitude 6 mw earthquake at 30 km depth.
Published location
Where is 146 km SE of Katsuura, 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.
34.258000, 141.500000
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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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Catalog fields and provenance
Event ID
iscgem892258
Coordinates
34.258, 141.5
Network
iscgem
Significance
558