1929 Kopet Dag earthquake

Tehran Bojnord Ashgabat
UTC time	1929-05-01 15:37:36
ISC event	908052
USGS-ANSS	ComCat
Local date	1 May 1929 (1929-05-01)
Local time	20:37:36
Magnitude	7.2 Mw[1]
Depth	10 km (6.2 mi)[1]
Epicenter	38°07′N 57°44′E / 38.12°N 57.74°E / 38.12; 57.74[1]
Type	Oblique-thrust[2]
Areas affected	Iran, Turkmenistan
Max. intensity	IX (Violent)[3]
Casualties	3,257–3,800[4] 1,121 injured[4]

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 Iran-Turkmenistan border. More than 1,100 were injured.

Damage and casualties

Within the epicentral area, 3,250 people were killed. Eighty-eight villages in the region were damaged or destroyed, along with damage at Bojnourd. Aftershocks occurred for more than four years after, including one in July 1929 that killed several more people, before finally subsiding in 1933. Fifty-seven diverse locations reported damage, including casualties in Ashgabat, Turkmenistan. Surface faulting occurred along the Baghan-Germab fault for a length of 50 kilometers (31 mi).^[5]