Section 4 Papers 4. Seismic Identification and Source Characterization ToC 4-01 Anderson, D., H. Patton, S. Taylor, and J. Bonner Isolating Source Information in mb and Ms with Model-Based Corrections: New mb Versus Ms Discriminant Formulations 4-02 Brunish, W., W. Hawkins, D. Coblentz, H. Patton, J. Zucca, J. Sweeney, C. Carrigan, T. Antoun, C. Seifert, K. Wohletz, C. Bradley, A. Sussman, T. Bowyer, R. Corbell, R. Abbott, C. Snelson, and P. Lee Source Physics Experiments at the Nevada Test Site 4-03 Dreger, D., S. Ford, and W. Walter Identifying Isotropic Events Using a Regional Moment Tensor Inversion Technique 4-04 Ford, S., W. Walter, S. Ruppert, E. Matzel, T. Hauk, and R. Gok Toward an Empirically-Based Parametric Explosion Spectral Model 4-05 Julia, J., A. Nyblade, R. Gok, W. Walter, L. Linzer, and R. Durrheim Developing and Exploiting a Unique Dataset from South African Gold Mines for Source Characterization and Wave Propagation 4-06 Koch, K. Re-Examination of Surface Wave Magnitude Estimates for the North Korean Event of 25 May 2009 4-07 Leidig, M., B. Stump, W. Walter, A. Stroujkova, X. Yang, and J. Bonner Examination of P/S Spectral Ratios for Small Explosions at Local Distances and Interpretation of Moment Tensors Estimated from Near-Source Data 4-08 Martin, R., P. Boyd, A. Stroujkova, M. Leidig, L. Liu, J. Lewkowicz, and J. Bonner Correlating Near-Source Rock Damage from Single-Hole Explosions to Seismic Waves 4-09 Mayeda, K., L. Malagnini, W. Walter, and R. Gok Improved High Frequency Discrimination: A New Approach to Correct for Regional Source Scaling Variations 4-10 Murphy, J. and T. Bennett An Analysis of the Seismic Source Characteristics of Explosions in Low-Coupling Dry Porous Media 4-11 Murphy, J., B. Kohl, J. Stevens, T. Bennett, and H. Israelsson Exploitation of the IMS and Other Data for a Comprehensive, Advanced Analysis of the North Korean Nuclear Tests 4-12 Pasyanos, M., W. Walter, E. Matzel, S. Ford, R. Gok, and A. Rodgers Calibration of Attenuation Structure in Eurasia to Improve Discrimination and Yield 4-13 Patton, H. Explosion Source Model Development in Support of Seismic Monitoring Technologies: Apparent Explosion Moment and Prospects for Moment-Based Yield Estimation 4-14 Phillips, W., X. Yang, R. Stead, M. Begnaud, and K. Mayeda Model Development for Broad Area Event Identification and Yield Estimation 4-15 Randall, G. and H. Hartse Identification of Deep Earthquakes 4-16 Rougier, E., C. Bradley, H. Patton, and E. Knight Numerical Simulations of Cavity Radius in Granite: Cavity Behavior as a Function of Scaled Depth of Burial 4-17 Sammis, C., H. Bhat, and A. Rosakis Micromechanical Damage Mechanics at High Loading Rates 4-18 Stevens, J. and H. Xu Wave Propagation from Complex 3D Sources Using the Representation Theorem 4-19 Stroujkova, A., J. Bonner, R. Herrmann, and D. Anderson Rayleigh and Love Wave Magnitudes