1939 Erzincan earthquake

An earthquake struck Turkey's eastern Erzincan Province at 1:57:23 a.m. on 27 December 1939 local time with a moment magnitude (Mw) of 7.8 and maximum Mercalli intensity of XII (Extreme). It is tied with the 2023 Turkey–Syria earthquakes as the most powerful earthquake in Turkey to be recorded by instruments. However, it was less powerful than estimates of the 1668 North Anatolia earthquake.