A magnitude 5.0 earthquake struck near Susanville, Northern California, close to the Nevada border. The epicenter, 9 miles northwest of Susanville in Lassen County, was at a shallow depth of 3.3 miles. Strong shaking affected Susanville and Johnstonville, while lighter tremors reached Chico, Redding, and Reno. ShakeAlert issued early warnings to mobile phones.