QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem610326271
USGS iscgem610326271
4 Apr 1904, 10:02
6 km W of Stara Kresna, Bulgaria
A magnitude 6.8 mw earthquake at 15 km depth.
Published location
Where is 6 km W of Stara Kresna, Bulgaria?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
41.802000, 23.108000
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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
iscgem610326271
Coordinates
41.802, 23.108
Network
iscgem
Significance
720