A significant magnitude 5.6 earthquake rattled northern California early Wednesday morning, sending sharp jolts through the Bay Area and prompting widespread alerts as residents woke up to shaking ground.

The quake struck just after 8:10 a.m. PT, centered about six miles from Redwood Valley in Mendocino County — roughly 125 miles north of San Francisco — at a depth of 8.1 miles, according to the U.S. Geological Survey. A smaller 2.5 magnitude aftershock followed shortly afterward.

As of now, there are no immediate reports of injuries or major damage, but officials are actively assessing the situation. Governor Gavin Newsom’s office confirmed he has been briefed and that state emergency teams are coordinating with local authorities to evaluate any impacts.

The Pacific Tsunami Warning Center stated that no tsunami is expected from this event.

While a 5.6 quake is considered moderate and typically causes only slight damage, its location in seismically active northern California has many on edge. The region sits along major fault lines, and events like this serve as vivid reminders of the constant risk residents face. For context, quakes in the 5.5 to 6.0 range can cause minor structural issues, while anything stronger brings far more serious threats.

This morning’s tremor highlights the importance of preparedness in earthquake country, especially as scientists continue to warn about the potential for a much larger “Big One” along the San Andreas Fault. As aftershocks remain possible in the coming days, authorities are urging calm but vigilance — a message that resonates deeply for millions living in this geologically restless part of the country.