The 1949 Khait (Hoit) earthquake (Russian: Хаитское землетрясение 1949 года; Tajik: Заминларзаи Ҳоит 1949) occurred at 09:45 local time (03:53 UTC) on 10 July in Gharm Oblast of the Tajik SSR of the Soviet Union (within the modern boundary of Tajikistan).

The earthquake occurred in a tectonically complex region at the southern edge of the Tien Shan.

[2] At the same time the Tajik Basin is being shortened in response to oblique collision with the Pamirs, forming a series of north–south to SW-NE trending thrust faults, the earthquake is thought to have been caused by movement on the Vakhsh thrust, one of these faults.

A more recent study, based on the size of affected settlements and the likely population density, gave an estimate of 7,200 of which about 800 were caused by the Khait landslide and 4,000 by the Yasman valley flowslide.

The area covered by the Yasman valley slide is about 24.4 km2, with a total estimated volume of 245 MCM (million cubic metres).