1. Department
of Civil, Architectural and Environmental Engineering, University of Texas at Austin, 301 East Dean Keeton Street, Austin, Texas 78705, United States
2. Department
of Geology, University of Illinois at Urbana−Champaign, 605 East Springfield Avenue, Champaign, Illinois 61820, United States
3. Department
of Civil and Environmental Engineering, University of Virginia, 351 McCormick Road, Charlottesville, Virginia 22904, United States
4. Illinois
State Geological Survey, University of Illinois at Urbana−Champaign, 615 East Peabody Drive, Champaign, Illinois 61820, United States