1. Department of Civil and Architectural Engineering; University of Wyoming; 1000 E. University Avenue Laramie WY 82071 USA
2. Department of Geosciences; Virginia Polytechnic Institute and State University; Blacksburg VA 24061 USA
3. Department of Urban Science; Meijo University; 4-102-9 Yataminami, Higashi Nagoya 461-8534 Japan
4. Department of Geology and Geophysics; University of Wyoming; 1000 E. University Avenue Laramie WY 82071 USA