Geological Hazards

What it is

Geologic hazards are hazards caused by ground movement or changes in the Earth’s surface. In Tennessee, these can include landslides, rockfalls, sinkholes, and unstable slopes.

Why it matters in Tennessee

Tennessee’s hills, mountains, valleys, caves, sinkholes, and changing ground conditions can make some areas more vulnerable to geologic hazards. Heavy rain, erosion, construction, and natural ground movement can increase the risk of landslides, rockfalls, sinkholes, and unstable slopes.

What to do before

• Learn whether your property or travel routes are near steep slopes, sinkholes, or unstable ground.
• Watch for cracks in foundations, walls, driveways, or the ground.
• Keep drainage systems clear and direct water away from structures.
• Report signs of road damage, slope movement, or sinkholes to local officials.
• Have an emergency plan in case you need to leave quickly.

What to do during

• Move away from the area if you see ground movement, falling rocks, or sudden cracking.
• Do not enter areas where the ground appears unstable.
• Avoid driving through areas with mud, debris, or damaged roads.
• Follow road closures and evacuation instructions.
• Call 911 if there is an immediate threat to life or safety.

What to do after

• Stay away from damaged slopes, sinkholes, and unstable structures.
• Do not enter damaged buildings until they have been inspected.
• Report damage to local officials.
• Watch for additional movement after heavy rain.
• Document damage for insurance or assistance needs.

Stay informed

Contact local officials or your county emergency management agency if you notice signs of ground movement or damage in your area.