The October 28 and 29 earthquakes occurred in the Sulaiman fold-and-thrust belt, a region where geologically young (Tertiary) sedimentary rocks have been folded and squeezed by forces associated with the Indian-Eurasian collision.
The earthquakes of October 28 and 29, 2008, are located approximately 50 km northeast of the region of most intense damage from the Pakistan earthquake of May 30, 1935 (M 7.6), which is estimated to have killed 30,000 people.