QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem873085
USGS iscgem873085
18 Sept 1963, 17:58
4 km N of Koruköy, Turkey
A magnitude 6.1 mw earthquake at 30 km depth.
Published location
Where is 4 km N of Koruköy, 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.
40.698000, 29.159000
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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
iscgem873085
Coordinates
40.698, 29.159
Network
iscgem
Significance
580