Battlefield 3: Aftermath is the fourth expansion pack available for Battlefield 3. It was revealed in a fact sheet pertaining to Battlefield Premium on May 30, 2012. At E3, the developers announced that it would take place in the aftermath of a magnitude 8.1 earthquake, the epicenter of which took place 170 miles southeast of Tehran, Iran. Set amongst the shattered districts, streets and cities of post-earthquake Iran, Aftermath depicts a continuing struggle for supremacy and survival amongst the devastation.