South of Bazman volcano lies the broad Jaz Murian depression . To the south of this depression the Makran area separates the Arabian sea from inner Iran . The Makran area is geologically subdivided into the Inner Makran series which includes ophiolitic melange and the Coastal Makran Series . A phase of subduction commenced in the Cretaceous or Plio-Pleistocene , probably after earlier phases of subduction . This subduction has resulted in the formation of a volcanic complex including Bazman that stretches east-west and reaches a width of , and is known as the Makran-Chagai magmatic arc . There is also earthquake activity including the 1945 Makran earthquake , but overall earthquake activity in the Makran is low , probably due to the effect of sediments in the trench . A large accretionary prism formed directly behind the trench , in the trench the subduction occurs at a pace of . There is no evidence of a Wadati – Benioff zone beneath the Makran . Bazman has been grouped with Taftan volcano also in Iran and Koh-i-Sultan in Pakistan , of which only Taftan is considered active , Kuh-e-Nader is another volcanic field in this arc . This arc is over away from the trench , indicating that the subduction is very shallow . Within this arc , Bazman is located at the edge between the actual subduction and the continental collision zone . Bazman is also considered part of a long volcanic belt named the Urumieh-Dokhtar or Sahand-Bazman belt that extends from northwest to southeast and is accompanied by Cenozoic volcanic rocks including plutons . Bazman is sometimes considered to be part of a volcanic complex with the neighbouring Shahsavaran volcanic field
1945 Makran earthquake
1945 Balochistan earthquake
Bazman