CRELLING, John C., RIMMER, Susan M., ANDERSON, Ken B., and HUGGETT, William W., Department of Geology, Southern Illinois University, MS 4324, Carbondale, IL 62901, jcrelling@geo.siu.edu

VALENTINE, Brett J., MORRISSEY, Eric A., PARK, Andy J., REIDY, Mark E., and HACKLEY, Paul C., U.S. Geological Survey, 956 National Center, Reston, VA 20192, bvalentine@usgs.gov

LIU, Yu-Ting¹, CHEN, Tsan-Yao², MACKEBEE, William Greer¹, and HSU-KIM, Heileen³, (1) Civil and Environmental Engineering, Duke University, 121 Hudson Hall, Research Drive, Durham, NC 27708, yl204@duke.edu, (2) Engineering and System Science, National Tsing Hua University, No. 101, Section 2, Kuang-Fu Road, Hsinchu, 30013, Taiwan, (3) Civil & Environmental Engineering, Duke University, 121 Hudson Hall, Box 90287, Durham, NC 27708

KOLKER, Allan¹, ENGLE, Mark A.², OREM, William H.¹, CROSBY, Lynn M.¹, TATU, Calin A.¹, GEBOY, Nicholas J.¹, HENDRYX, Michael³, MCCAWLEY, Michael³, VARONKA, Matthew S.¹, and ESCH, Laura³, (1) U.S. Geological Survey, 956 National Center, Reston, VA 20192, akolker@usgs.gov, (2) U.S. Geological Survey, El Paso, TX 79968, (3) West Virginia University, School of Public Health, Morgantown, WV 26506

SANDERS, Margaret McPherson, Department of Geology, Mailcode 4324, Southern Illinois University, Carbondale, IL 62901, mcphermb@siu.edu, RIMMER, Susan M., Department of Geology, Southern Illinois University, Mailcode 4324, Carbondale, IL 62901, ROWE, Harold, Earth and Environmental Sciences, University of Texas at Arlington, Arlington, TX 77019, and CRELLING, John C., Department of Geology, Southern Illinois University, MS 4324, Carbondale, IL 62901