The magnitude 7.8 earthquake that killed — by current count — more than 6,000 people in Turkey and Syria on Sunday was produced by the same type of fault underlying most of California.
Sunday’s event could be felt more than 200 miles from its epicenter, and it has produced a humanitarian disaster in a region already suffering. As rescuers find more victims in the rubble, the number of dead and injured could increase by as much as eight times the current count, according to the World Health Organization.