🫨 Earthquakes · Tennessee
Earthquakes risk in Tennessee
Moderate — level 3 of 5
By HomeRiskMap Editors, Editorial team · Reviewed October 7, 2026 · How we source this
Tennessee has a moderate-to-high earthquake risk, primarily from the New Madrid Seismic Zone in the west and the East Tennessee Seismic Zone in the east. While large earthquakes are less frequent than in California, the state has experienced damaging quakes and faces significant potential for future events. Homeowners should understand their risk and take steps to prepare.
On this page
Earthquake Risk in Tennessee: Geography and Exposure
Tennessee might not be the first state that comes to mind for earthquakes, but it sits between two active seismic zones. The New Madrid Seismic Zone (NMSZ) is centered in the Missouri Bootheel and extends into western Tennessee, including Memphis and Shelby County. This zone produced some of the most powerful earthquakes in U.S. history in 1811-1812. The East Tennessee Seismic Zone (ETSZ) runs through eastern Tennessee, affecting areas near Knoxville and Chattanooga. Earthquakes can occur at any time of year - there is no "earthquake season."
The most exposed areas are West Tennessee, particularly the Memphis area, and East Tennessee, near Knoxville and Chattanooga. Central Tennessee can also experience shaking from both zones. In West Tennessee, the thick sediments of the Mississippi Embayment can amplify seismic waves, making shaking stronger and more damaging over a wider area. The USGS provides detailed hazard maps and information about these zones.
While large earthquakes are less frequent than in California, Tennessee has a significant risk. According to the USGS, the New Madrid Seismic Zone is capable of producing major earthquakes (magnitude 7.0 or higher). The East Tennessee Seismic Zone produces more frequent but generally smaller earthquakes. Even moderate quakes can cause damage, especially to older homes and infrastructure.
How It Affects Homes
Earthquake damage to homes can range from minor cracks in drywall and foundation to catastrophic structural failure. Common types of damage include:
- Cracked foundations, walls, and chimneys
- Broken windows and fallen objects
- Gas leaks and fires
- Shifted or collapsed structures
Older homes, unreinforced masonry, and homes not bolted to their foundations are most vulnerable. Soil conditions also play a role: soft soils amplify shaking, so homes on filled land or near rivers may experience stronger motion.
Standard homeowners insurance policies typically do not cover earthquake damage. You need a separate earthquake policy or an endorsement. Earthquake insurance often has a percentage deductible (e.g., 10-20% of the dwelling coverage) and may exclude certain types of damage. After a major earthquake, FEMA may provide disaster assistance, but it is not a substitute for insurance. Review your policy and consider your risk.
How to Prepare Your Home
Taking steps to retrofit and secure your home can reduce damage and keep you safer. Consider these actions:
- Secure your water heater. Strap it to wall studs and use flexible connections for gas and water lines.
- Anchor heavy furniture and appliances. Bookcases, televisions, refrigerators, and file cabinets should be bolted to wall studs.
- Install cabinet latches. Keep doors closed to prevent items from falling out.
- Bolt your home to its foundation. If your home is not bolted, consult a licensed contractor to add bolts and shear walls or braces.
- Reinforce chimneys and masonry. Unreinforced brick chimneys can collapse; consider bracing or rebuilding.
- Secure light fixtures and ceiling fans. Ensure they are firmly attached to ceiling joists.
- Get a seismic retrofit evaluation. A professional can assess your home's vulnerabilities and recommend improvements.
- Create a family emergency plan. Practice "Drop, Cover, and Hold On" and identify safe spots in each room.
- Assemble a disaster kit. Include water, non-perishable food, medications, a flashlight, and a battery-powered radio.
- Know how to turn off gas and electricity. Teach family members how to do it safely after an earthquake.
For more guidance, check with the Tennessee Emergency Management Agency (TEMA) and the USGS.
Frequently Asked Questions
Does Tennessee have earthquakes?
Yes. Tennessee experiences earthquakes, primarily from the New Madrid Seismic Zone in the west and the East Tennessee Seismic Zone in the east. While most are small, the state has a history of damaging quakes and remains at risk for larger events. The USGS records frequent minor tremors in the region.
Is earthquake insurance required in Tennessee?
No, earthquake insurance is not required by law in Tennessee. However, standard homeowners policies exclude earthquake damage, so if you live in a higher-risk area like West Tennessee, consider purchasing a separate policy or endorsement. It can provide valuable financial protection.
What should I do during an earthquake?
Drop, Cover, and Hold On. If you are indoors, get under a sturdy table or desk and protect your head and neck. Stay away from windows and exterior walls. If outdoors, move to an open area away from buildings and power lines. If driving, pull over and stop in a clear spot. After the shaking stops, check for injuries and damage, and be prepared for aftershocks.
Official Resources
Common questions
- How serious is earthquakes in Tennessee?
- Tennessee is rated Moderate (3 of 5) for earthquakes at the state scale. That is a starting point — two addresses in the same county can differ.
- Does insurance cover earthquakes here?
- Earthquake damage is typically excluded from a standard homeowners policy. Coverage is a separate policy or endorsement.
Last updated: October 7, 2026. Risk levels are state-wide estimates based on public hazard data — always verify your specific address with the official sources above.