QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem891380
USGS iscgem891380
26 Dec 1954, 03:40
Izu Islands, Japan region
A magnitude 6 mw earthquake at 20 km depth.
Published location
Where is Izu Islands, Japan region?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
30.160000, 142.096000
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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
iscgem891380
Coordinates
30.16, 142.096
Network
iscgem
Significance
554