QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem909471
USGS iscgem909471
24 Aug 1927, 09:55
215 km E of Hasaki, Japan
A magnitude 6.3 mw earthquake at 15 km depth.
Published location
Where is 215 km E of Hasaki, 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.
35.922000, 143.207000
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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
iscgem909471
Coordinates
35.922, 143.207
Network
iscgem
Significance
609