Tekirdağ–Mürefte earthquake of 1912
1912 CE.
Shown on the map at 40.500°, 27.200°.
The 1912 Mürefte earthquake occurred at 03:29 local time on 9 August. It had an estimated magnitude of 7.4 Mw and a maximum intensity of X (Extreme) on the Modified Mercalli intensity scale, causing from 216 to 3,000 casualties.
Text from the Wikipedia article 1912 Mürefte earthquake, licensed CC BY-SA 4.0.