QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp0001wk7
USGS usp0001wk7
5 Jul 1983, 13:01
10 km N of Biga, Turkey
A magnitude 6.1 ms earthquake at 10 km depth.
Published location
Where is 10 km N of Biga, 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.
40.324000, 27.222000
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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
usp0001wk7
Coordinates
40.324, 27.222
Network
us
Significance
572