NEW : Drinking water cut in Tehran . Iran sits on major fault lines -- the collision of the Arabia and Eurasia plates -- and has been prone to devastating earthquakes . News media : 2 aftershocks and 2 powerful earthquakes . Some buildings in Tabriz were damaged . Iran has been prone to devastating earthquakes .
NEW : Drinking water cut in Tehran . News media : 2 aftershocks and 2 powerful earthquakes . Some buildings in Tabriz were damaged . Iran has been prone to devastating earthquakes .