Contra Costa County

Earthquakes Near Concord, California

Real-time earthquake monitoring for Concord and surrounding areas within 25 miles.

Within 25mi

8,328

total earthquakes

30-Day Activity

177

recent earthquakes

Avg Magnitude

1.39

Max Recorded

4.5

Recent Activity Near Concord

177 earthquakes recorded within 25 miles of Concord in the last 30 days. The largest was M4.2.

Earthquake Risk in Concord

Concord is located in Contra Costa County, California, one of the most seismically active regions in the United States. The city sits within the San Francisco Bay Area, which is traversed by several major fault systems.

Concord Earthquake FAQ

Is Concord at risk for earthquakes?

Yes, Concord is located in Contra Costa County within the seismically active San Francisco Bay Area. The region sits near several major fault systems. Scientists estimate a 72% probability of a magnitude 6.7 or greater earthquake in the Bay Area within the next 30 years.

What should I do if I feel an earthquake in Concord?

If you feel shaking in Concord, remember "Drop, Cover, and Hold On." Drop to your hands and knees, take cover under a sturdy desk or table, and hold on until the shaking stops. Stay away from windows, exterior walls, and anything that could fall. If you're outdoors, move away from buildings, power lines, and trees.

How do I report feeling an earthquake in Concord?

You can report feeling an earthquake in Concord using Bay Tremor's "Did You Feel It?" feature or through the USGS website. Your reports help scientists understand earthquake intensity distribution and improve hazard assessments for Contra Costa County.

What is the nearest fault line to Concord?

Concord is located in the San Francisco Bay Area, which is traversed by several major faults including the San Andreas, Hayward, and Calaveras faults. All Bay Area residents should maintain earthquake preparedness.

How often do earthquakes occur near Concord?

The Bay Area, including areas near Concord, experiences hundreds of small earthquakes each year. Most are too small to feel (below magnitude 2.0), but noticeable earthquakes occur regularly. Larger earthquakes (magnitude 4.0+) that are widely felt happen several times per year across the Bay Area.

What earthquake supplies should Concord residents have?

Concord residents should prepare an earthquake kit containing: 3-7 days of water (1 gallon per person per day), non-perishable food, flashlight, batteries, first aid kit, medications, important documents, cash, and a battery-powered radio. Also secure heavy furniture to walls and know how to shut off gas and electricity.