QuakeFactsEvidence report · prepared 3 September 2026https://quakes99.com/entity/usp000c58u
USGS usp000c58u
18 Aug 2003, 10:59
8 km SSW of Honch?, Japan
A magnitude 5 mwc earthquake at 79.9 km depth.
Published location
Where is 8 km SSW of Honch?, 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.
35.630000, 139.968000
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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
usp000c58u
Coordinates
35.63, 139.968
Network
us
Significance
385