QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp0000t8z
USGS usp0000t8z
7 Mar 1978, 02:48
244 km SE of Shing?, Japan
A magnitude 6.9 mb earthquake at 439 km depth.
Published location
Where is 244 km SE of Shing?, 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.
32.005000, 137.609000
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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
usp0000t8z
Coordinates
32.005, 137.609
Network
us
Significance
732