Landslide FAQs
Find answers to the most common questions about landslide and mudslide safety, recognizing the warning signs, knowing if your home is in a risk zone, and what to do when the ground gives way — because a little preparation goes a long way when you live near hilly terrain.
Common Questions
How do I prepare for a landslide?
Know your landslide risk zone (check USGS landslide hazard maps), watch for warning signs (cracks in soil, tilted trees, new springs), avoid building below steep slopes, install proper drainage away from foundations, and maintain retaining walls.
What are the warning signs of a landslide?
New cracks in walls, ceilings, or foundations; doors or windows that stick; tilted trees or fence posts; new springs or saturated ground; unusual rumbling sounds; and visible ground movement on slopes. Evacuate immediately if you see these signs.
How can I survive a mudslide?
Evacuate immediately if ordered. If caught in a mudslide, curl into a tight ball and protect your head. If inside, move to the second floor or attic. Stay away from the slide path and downstream; secondary slides can follow.
How do I know if I live in a landslide risk zone?
Check the USGS Landslide Hazards Program at usgs.gov/programs/landslide-hazards. High-risk areas include steep slopes (20+ degrees), burn scars from recent wildfires, areas with saturated soil, and coastal bluffs. State geological surveys publish detailed local maps.