Kopet Dag
The 1929 Kopet Dag earthquake (also called the 1929 Koppeh Dagh earthquake) took place at 15:37 UTC on 1 May with a moment magnitude of 7.2 and a maximum Mercalli intensity of IX ("Violent"). It occurred in the Kopet Dag area of Iran and caused up to 3,800 casualties along the Turkmenistan-Iran border. More than 1,100 were injured.