1957 Sangchal earthquake
1957 CE.
Shown on the map at 36.277°, 52.778°.
The 1957 Alborz earthquake struck northern Iran's Mazandaran province at 04:12 on 2 July. It had a moment magnitude (Mw) of 7.1 and occurred at a focal depth of 15 km (9.3 mi). The thrust-faulting shock was assigned a maximum Modified Mercalli intensity of IX (Violent). It devastated 120 villages in the Alborz Mountains and caused an estimated 1,500 fatalities. The earthquake also triggered landslides including one that dammed the Haraz River. Some damage was also reported in Tehran, Qaem Shahr and Sari.
Text from the Wikipedia article 1957 Alborz earthquake, licensed CC BY-SA 4.0.