QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem902833
USGS iscgem902833
29 Nov 1938, 13:39
127 km ESE of Iwaki, Japan
A magnitude 6.5 mw earthquake at 25 km depth.
Published location
Where is 127 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.
36.669000, 142.227000
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
iscgem902833
Coordinates
36.669, 142.227
Network
iscgem
Significance
648