QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem810080
USGS iscgem810080
22 Apr 1969, 09:11
117 km ENE of Miyako, Japan
A magnitude 6.1 mw earthquake at 35.6 km depth.
Published location
Where is 117 km ENE 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.
39.898000, 143.274000
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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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Nearby events with a similar magnitude
Catalog fields and provenance
Event ID
iscgem810080
Coordinates
39.898, 143.274
Network
iscgem
Significance
569