Microtremor Data Collection in the Imperial Valley Basin, 2024

The Imperial Valley Basin (IVB) is a prominent sedimentary basin located in southern California, east of San Diego, within the Salton Trough. This tectonically active region, part of the San Andreas Fault system, is characterized by low-lying topography, with much of the Imperial Valley situated below sea level. The IVB is also subject to significant seismic activity, including movements along the Imperial and San Andreas Faults. As part of ongoing research efforts, 33 microtremor measurements were conducted at various locations within the region, specifically near strong motion stations. These measurements contribute to the development of the Shear Wave Velocity Profile Database (VSPDB) and the creation of a site response model conditioned on mHVSR.