From my work in this area in the past, Ive create a post with USGS Quad and some more accurate locations of this tragedy
Youre welcome to take look and use what you need because some of the initial news reports and maps were not very good of this area.
http://bbs.keyhole.com/ubb/showthreaded.php/Cat/0/Number/711097/an/0/page/0#711097