thats right and they don't cover earthquakes either so be sure not to smoke near a broken gas line (by flood or quake) as the house may catch fire which is covered by insurance...
It sounds funny but my fire insurance was cancelled when I had land movement on my property for just this reason. Lots of unscupulous individuals *do* arson their own houses after landslides and earthquakes. Unfortunate for the honest. (I spent lot of my own money to repair and sold the house, with full disclosure and at a loss, to someone with even more plans for reinforcement, which he completed.)