A preliminary magnitude 5.6 earthquake struck near Redwood Valley in Mendocino County at approximately 8:10 a.m. Pacific Time on Wednesday, June 24, 2026, triggering earthquake alerts across parts of Northern California, including the San Francisco Bay Area. The Redwood Valley earthquake on June 24, 2026, was centered north of Ukiah at a depth of approximately 5 miles, according to preliminary information from the U.S. Geo