1944 Bolu–Gerede earthquake
The 1944 Bolu–Gerede earthquake occurred at 05:22 local time on 1 February. The earthquake had an estimated magnitude of 7.5 and a maximum felt intensity of IX-X on the Mercalli intensity scale. It ruptured part of the North Anatolian Fault, forming part of a progressive sequence of events that generally migrated westwards along the fault zone, starting with the 1939 Erzincan earthquake.