The Multi-Scale CALifornia (MUSCAL) statewide Vp and Vs velocity models provide high-quality integrated description of seismic structures across the state. Starting with the CANVAS base model (Doody et al., 2023), MUSCAL incorporates multiple regional and local velocity datasets into a unified structure, capturing features ranging from broad crustal-mantle structures to fine-scale local anomalies such as sedimentary basins.
To ensure quality, the merged multi-scale models underwent a data-informed refinement process guided by simulations of small validation events. A key feature of MUSCAL is the inclusion of a locally optimized near-surface low-velocity taper (LVT), specifically designed to better represent under-resolved shallow structures and improve the accuracy of ground-motion predictions.
This package is intended to be installed as part of the UCVM framework, version 25.7 or higher.
If you would like to contact the authors regarding this software, please e-mail software@scec.org. Note this e-mail address should be used for questions regarding the software itself (e.g. how do I link the library properly?). Questions regarding the model's science (e.g. on what paper is the MUSCAL based?) should be directed to the model's authors, located in the AUTHORS file.
To install this package on your computer, please run the following commands:
aclocal autoconf automake --add-missing ./configure --prefix=/dir/to/install make make install