Regional 3-D seismic velocity models used for broadband strong motion simulations must include compressional-wave velocity (Vp), shear-wave velocity (Vs), intrinsic attenuation (Qp, Qs), and density. Vs and Qs are the most important of these parameters because the strongest ground motions are generated chiefly by shear- and surface-wave arrivals. Because Vp data are more common than Vs data, many researchers first develop a Vp model and convert it to a Vs model. I describe recent empirical relations between Vs, Vp, Qs, Qp, and density that allow velocity models to be rapidly and accurately calculated. ?? Springer Science+Business Media B.V. 2007.
Citation Information
Publication Year | 2008 |
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Title | Key elements of regional seismic velocity models for long period ground motion simulations |
DOI | 10.1007/s10950-007-9061-3 |
Authors | T. M. Brocher |
Publication Type | Article |
Publication Subtype | Journal Article |
Series Title | Journal of Seismology |
Index ID | 70033688 |
Record Source | USGS Publications Warehouse |