Magnitude 6.4 Quake Shakes Northern California, Leaves 2 Dead, Thousands Without Power

A road closure on California State Route 211 at Fernbridge, a 1,320-foot-long (402.3 m) concrete arch bridge that spans the Eel River near Fortuna, Calif., in Humboldt County. Caltrans District 1 via AP

RIO DELL, Calif.—A powerful magnitude 6.4 earthquake jolted the extreme northern coast of California before dawn on Tuesday, damaging homes, roads and water systems and leaving tens of thousands of people without electricity.

At least 11 people were reported injured, and two others died from “medical emergencies” that occurred during or just after the quake, according to the Humboldt County Sheriff’s Office.