QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem899887
USGS iscgem899887
15 Jun 1943, 13:10
129 km ENE of Misawa, Japan
A magnitude 6.4 mw earthquake at 40 km depth.
Published location
Where is 129 km ENE of Misawa, 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.
41.107000, 142.820000
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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
iscgem899887
Coordinates
41.107, 142.82
Network
iscgem
Significance
628