Earthquakes and Slab Leaks: What Southern California Owners Should Check
Southern California sits on active faults, and shaking or ground shift can stress rigid pipe under concrete. After a quake it is smart to check, even when nothing looks wrong.
Why movement matters to pipes
Pipes under a slab are held in place by concrete and soil. If the slab or ground moves, pipes can bend, shear or rub against concrete. A leak may start right away or appear later. See the causes of slab leaks. We cannot say how much movement it takes to damage a particular pipe.
What to check after shaking
- If you smell gas or suspect a gas leak, leave and call the gas utility or emergency services first.
- Look for new cracks in walls, floors or the slab.
- Check for water on the floor or wet baseboards.
- Listen for running water with fixtures off.
- Run the meter test. See how to tell if you have a slab leak.
- Check again over the next days because a leak may appear later.
Pipes versus structure
A plumber finds and repairs leaking pipes. A licensed structural engineer evaluates cracks, settling and foundation concerns. See slab leak and foundation damage.
Insurance
Standard homeowners policies commonly exclude earthquake damage, and coverage is often separate. Ask your insurer what applies. See slab leak insurance coverage.
Frequently asked questions
Can an earthquake cause a slab leak?
Ground movement can stress pipes under a slab. A specific leak could also have other causes.
Should I test after every earthquake?
A quick meter test is cheap and easy after noticeable shaking.
Is earthquake damage covered?
Often not under a standard policy. Check your policy and ask your insurer.
Who checks structure?
A licensed structural engineer.
Keep reading
Need slab leak repair Pomona homeowners can book? See our slab leak repair Pomona page for how we work, or call (909) 415-2610.
Water running, or a warm spot on the floor?
Shut off the main if water is visible, then call. A Pomona plumber will tell you what to do next.
Call (909) 415-2610
