The M 5.7 Parker Butte Earthquake near Yerington, Nevada: Anatomy of a Dual‐Plane Rupture in the Walker Lane from High‐Precision Relocated Earthquakes, InSAR, GPS

On 9 December 2024, at 3:08 p.m. local time, the Mw 5.7 Parker Butte earthquake occurred about 24 km north-northeast of Yerington, Nevada. From 1 December 2024 to 10 May 2025, we cataloged 1301 earthquakes, including seven events M L > 3:5. We use high-precision earthquake relocation, Interferometric Synthetic Aperture Radar (InSAR) data, Global Positioning System (GPS) data, and strong-motion data to explore the tectonic context and spatiotemporal evolution of this sequence. The high-precision relocations of the sequence reveal a main cluster of earthquakes that form a planar feature which can be fit with a plane striking N62°E and dipping 85° SE. Events that are not in the main cluster are primarily 5–10 km to the southeast and are more scattered, but some smaller linear clusters can be identified. We used InSAR and GPS data to model fault geometry and slip. From this analysis, we found that the ground deformation can be fit with a single fault 12 km long × 8 km wide with a strike of N61.5°E ± 1.0°, dipping 73° ± 1.5° southeast and slip up to ∼50 cm, concentrated between depths of 2.5 and 7 km, consistent with an Mw 5.7 rupture. However, a better fit is found by adding a sec-