TY - RPRT TI - Stafford fault system: 120 million year fault movement history of northern Virginia AU - David S. Powars AU - Rufus D. Catchings AU - J. Wright Horton AU - J. Stephen Schindler AU - Milan J. Pavich PY - 2015 DO - 10.1130/2015.2509(23) UR - https://pubs.usgs.gov/publication/70188502 ID - 70188502 ER -