Chronology of tectonic, geomorphic, and volcanic interactions and the tempo of fault slip near Little Lake, California

New geochronologic and geomorphic constraints the Little Lake fault in the Eastern shear zone reveal steady, modest of dextral slip during and since the midto- Pleistocene. We focus on a suite of offset uvial landforms in the Pleistocene Owens channel that formed in response to odic interaction with nearby basalt fl ows, recording displacement over multiple intervals. Overlap between 40Ar/39Ar for the youngest intracanyon basalt fl ow 10Be surface exposure dating of downstream surfaces suggests widespread incision during a prominent outburst ood through the Little Lake channel at ca. 64 ka. Older basalt fl ows fl anking the upper lower canyon margins indicate localization the Owens River in its current position 212 ± 14 and 197 ± 11 ka. Coupled terrestrial light detection and ranging (lidar) and digital topographic measurements dextral offset, the revised Little Lake chronology average dextral slip rates of least ~0.6–0.7 mm/yr and <1.3 mm/yr over ranging from ~104 to 105 yr. Despite geodetic observations of relatively interseismic strain along the Little fault, we fi nd no evidence for sustained fl uctuations in slip rates over multiple cycles. Instead, our results that accelerated fault loading may be over much shorter periods (~101 yr) perhaps indicative of time-dependent hazard associated with Eastern California zone faults.