QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem904023
USGS iscgem904023
4 Jan 1935, 16:20
8 km N of Marmara, Turkey
A magnitude 6 mw earthquake at 10 km depth.
Published location
Where is 8 km N of Marmara, Turkey?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
40.664000, 27.555000
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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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Catalog fields and provenance
Event ID
iscgem904023
Coordinates
40.664, 27.555
Network
iscgem
Significance
556