Marash earthquake of 1114
1114 CE.
Shown on the map at 37.500°, 38.500°.
An earthquake occurred in the area of Marash during the early morning hours of November 29, 1114. It had an estimated surface-wave magnitude between 7.4 and 7.7 and an epicenter location in modern-day Turkey. The mainshock was preceded by two destructive foreshocks in August and November that same year. At least 40,000 people were killed in the earthquake; a number contested by historians due to the small population in the area at the time. These earthquakes were associated with seismic activity on the East Anatolian Fault.
Text from the Wikipedia article 1114 Marash earthquake, licensed CC BY-SA 4.0.