499 Nicopolis earthquake
499 CE.
Shown on the map at 40.554°, 36.949°.
The 499 Nicopolis earthquake took place in September 499. It affected the cities of Nicopolis, Neocaesarea (modern Niksar), Arsamosata, and Abarne.
Text from the Wikipedia article 499 Nicopolis earthquake, licensed CC BY-SA 4.0.