While an earthquake may not be as common in our region as in others, more than 200 small earthquakes shake East Tennessee each year. Most are too minor to feel, occasional stronger quakes, like the 3.2 magnitude tremor that hit near Maryville in early 2024, remind us that earthquake risks here are real.
Many Tennessee homes were not built with seismic activity in mind. That means even a moderate earthquake can cause damage, sometimes visible, sometimes hidden. If you are a homeowner in Tennessee, knowing how to prepare for earthquakes and spot signs of damage can protect your property and your family.
Here is what to know and what to watch for.
Earthquake Impact on Tennessee Homes
Earthquakes in Tennessee are usually linked to the East Tennessee Seismic Zone, which stretches from Chattanooga toward Knoxville and beyond. Homes in this region may not have modern reinforcements to withstand ground shaking.
Some effects show up right away, but others can take weeks or months to become noticeable.
What to Check ASAP After an Earthquake
Start with a simple walk-through of your home. Look carefully at:
1. Foundation and exterior walls
Cracks in foundation walls, especially diagonal or stair-step patterns, can signal serious shifting. Even hairline cracks can let in moisture and lead to long-term damage.
2. Doors and windows
If doors suddenly stick or windows no longer slide easily, the framing of the house may have shifted.
3. Rooflines
Stand back and check if your roofline still looks straight and level. Any sagging or warping could indicate hidden structural movement.
Signs of Hidden Damage
Not all earthquake damage is easy to spot. Be alert for these subtle signs in the weeks following a quake:
Cracks in drywall or ceilings
Even small cracks or nail pops can reveal stress in your home’s framing.
Uneven or sloping floors
If floors that used to feel flat now seem tilted, it could be due to a shifting foundation or damaged supports.
Plumbing issues
Leaks, low water pressure, or new rattling noises in your pipes can point to earthquake-related damage. Pay special attention to gas lines, and call your utility provider if you suspect a leak.
Electrical problems
Flickering lights, outlets that stop working, or tripped breakers may signal wiring damage caused by ground movement.
Preparing a Home for Earthquakes
Since earthquakes in Tennessee tend to catch homeowners off guard, taking simple preparedness steps can help:
1) Secure heavy furniture
Anchor tall bookshelves and cabinets to the wall. Use safety straps on large appliances.
2) Know how to shut off utilities
Learn how to safely turn off your home’s gas, water, and electricity in case of a leak or fire.
3) Inspect your foundation and structure
Schedule a professional home inspection to check for existing vulnerabilities, especially if your home is older or has been through past earthquakes.
4) Review your insurance coverage
Standard homeowners’ insurance often does not cover earthquake damage. Talk to your insurance agent about adding earthquake coverage to your policy.
Why Professional Inspections Matter
Some forms of earthquake damage can remain hidden for months, especially in crawl spaces, attics, or behind walls. Professional inspectors know where to look and what warning signs to flag.
At Bentley Home Inspections, we are experienced in evaluating Tennessee homes for structural issues, foundation problems, and damage from environmental events like earthquakes. We can give you a clear picture of your home’s condition and recommend the right next steps if repairs are needed.
Final Tips
Earthquakes may not be common in Tennessee, but the risk is real, and even small tremors can impact your home. After any local seismic activity, be proactive:
Walk through your home with this checklist
Document any changes or damage with photos
If in doubt, call a professional inspector to assess your home’s safety
For homeowners in Knoxville and throughout East Tennessee, staying aware and prepared is key to protecting your property from the next earthquake or storm.
