Assistant Professor, Islamic Azad University, Ahar Branch
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Salmas city, capital city of Salmas region which is located in 38, 12 North and 44, 46, 40 east is in West Azerbaijan. The capital city of this state is Urmiye. During ancient time and history there were many earthquakes in this region but it was first time that earhtquake with M=7.2 earhtquake magnitude destroyd Salmas region complatly in 4 May 1930. Damaged field of this earthquake expanded to Hoy region north of Salmas; and Hakkary east Of Turkey. Meanwile accomponing with destroying of all Salmas city, many ancient places in Salmas region destroyed too. İn the begining of this paper first we explain Salmas geography, administrative position, demography and geomorphology of Salmas and then in discuss part of this paper we explain seismotectonic , shake up of geomorphology and how occured earthquake in Salmas region. Studying shows that this earthquake accompanied with faultin which is seenable nowadays. We able follow it uncontinuasly along 16 km from NW of shorgol village to Kohneshahar town. There is one GASEOU spring in 10 km north of Salmas fault. At a rsult of this earthquake surface of ground water go up but then returned to old surface, water level of Urmiya lake which was went down after earthquake went up slowly. İn this earthquake many landslides which is occured in Salmas fieldhave been reported. it was noticable sliding of Heftwantepe and Dirishtepe ancient hills. Amplitude of this damaged expaned from Salmas plain to Kotor in Hoy in north of salmas and origin of Zab reiver in east of Turkey.
Keywords: Salmas, Earthquake, 1930, Seismotectonics, Geomorphology