Sinkhole - 5 Things Your Homeowner's Insurance May Not Cover - Bob Vila
Sinkholes and Landslides
Now the land isn’t there anymore, either. Sinkholes and landslides pretty much wipe out everything. Especially if you live in shaky-land territory—for example, Florida (sinkholes) or the West Coast and anywhere in the midwest along the New Madrid Fault (earthquakes)—be sure that you have riders for land collapse.