QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem901192
USGS iscgem901192
9 Feb 1940, 13:53
86 km NE of Miyako, Japan
A magnitude 6.1 mw earthquake at 35 km depth.
Published location
Where is 86 km NE of Miyako, 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.
40.256000, 142.564000
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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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Nearby events with a similar magnitude
Catalog fields and provenance
Event ID
iscgem901192
Coordinates
40.256, 142.564
Network
iscgem
Significance
567