QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem893603
USGS iscgem893603
26 Oct 1952, 15:46
119 km E of Yamada, Japan
A magnitude 6.6 mw earthquake at 27.8 km depth.
Published location
Where is 119 km E of Yamada, 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.
39.515000, 143.336000
Open the interactive map ↗Map data © OpenStreetMap contributors
What the numbers mean
Magnitude measures event size; depth locates the source below the surface. Neither value alone establishes local damage or personal risk.
Need a current safety answer?
Use local emergency authorities and the live USGS event page. This historical evidence page is not an alert service.
Continue exploring
Nearby events with a similar magnitude
Catalog fields and provenance
Event ID
iscgem893603
Coordinates
39.515, 143.336
Network
iscgem
Significance
678