Late Holocene rupture history of the Ash Hill fault, Eastern California Shear Zone, and the potential for seismogenic strain transfer between nearby faults

Understanding how fault systems interact and transfer strain over seismogenic timescales (seconds to ka) requires temporal records of past ruptures along adjacent intersecting networks. Here we document the record Late Holocene as recorded in geomorphology alluvial deposits Ash Hill fault, Eastern California Shear Zone (ECSZ). We leverage a multi-faceted approach evaluate relative timing those nearby faults ECSZ. determine number earthquakes on using high-resolution tectono-geomorphic mapping, locally calibrated fan stratigraphy, feldspar luminescence dating, offset analysis from field observations, LiDAR, drone-based digital surface elevation models. find evidence for three surface-rupturing that have occurred since ~4 ka, each with ~1.0 ± 0.2 m oblique slip per event (Mw ~ 6.9–7.0), constrain these by dating bracket event. The is similar paleoseismic range-bounding southern Panamint Valley. Specifically, two exhibit numbers during Holocene, recurrence intervals rupture timing. These data suggest it possible ruptured same or closely temporally related events throughout Holocene. Similar spatio-temporal clustered been recognized both historic region, such behaviour may be common complexly interlinked networks, like exist