QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem902498
USGS iscgem902498
23 May 1938, 08:18
69 km ESE of Kitaibaraki, Japan
A magnitude 7.7 mw earthquake at 15 km depth.
Published location
Where is 69 km ESE of Kitaibaraki, 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.
36.534000, 141.459000
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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
iscgem902498
Coordinates
36.534, 141.459
Network
iscgem
Significance
912