Liam and Bruce, I get the same error: Warning: dist_rrup expects a polygonal fault; will use dist_rjb, but that may not be what you want! at /home/shake/test/bin/../perl/lib/ Shake/Distance.pm line 412. when the only difference is using BA08 rather than HazusPGV. In my case, the finite fault is a line rather than a polygon. bob