Poster Presentation

This study develops region specific adjustments to ground motion model source, path, and site terms for the Santa Barbara region of California, a tectonically active area characterized by unique geological features within the broader context of California’s geology. The Santa Barbara region features coastal marine terraces and plains, fault-bounded structures, and shallow alluvial deposits overlying complex basement rock.

A dataset of recent earthquake records within and near the region are used to examine trends of the ground motion intensity measure residuals and propose modification to model terms dependent on the regional bias, azimuthal path effects, and local site effects.