1923 Torbat-e Heydarieh earthquake

Its location is within a seismically active zone that stretches from Nishapur to Sisan-e Qadim along a junction between the Lut Block and the flysch belt.

This strip of area intersects the 600 km (370 mi) east-west striking Doruneh Fault zone that stretches from Khwaf to the Dasht-e Kavir.

The Modified Mercalli intensity in the area was evaluated at VIII (Severe) based on reports of people and animals being tossed to the floor.

There were no surface ruptures observed along the Doruneh Fault zone though limited land slumping occurred near channels and qanats which were not tectonic in origin.

Modified Mercalli intensities no greater than VI (Strong) followed along a predominantly easternly trend from the epicenter and covered a 1,000 km2 (390 sq mi) area.

The town was reconstructed over several years as the village's qanats continued supplying sufficient water despite its reduced capacity after the earthquake.

Damage covered a wide area which stretched 20 km (12 mi) east of Torbat-e Heydarieh but was considered minor; few homes collapsed, killing some people in Guji and Malekabad.

[3] Separate boards were formed to handle the injured, sustinance for survivors and burial; crop cultivation and irrigation; and claims for dead people's will and property losses.

A public assembly of the Majlis to discuss the grant petition opened on 9 June 1923 with Ahmad Shah Qajar being involved.