Some things can be prepared for, but never prevented. Landslides, earthquakes, and tornadoes can damage or destroy a vehicle despite almost any level of precaution. When all else fails, you'll want your insurance to cover your vehicle in event of a natural disaster:
It is important to cover your car for natural disasters even if you do not live in a country or city that is prone to hurricanes, floods, earthquakes and tornadoes. Remember that a simple hail storm can cause unsightly damage to your vehicle that will need to be repaired. A flash flood can hit any city at any time, and it is better to know you will be covered should anything happen.
Many insurance policies, especially those geared towards budget-conscious consumers, don't cover damages sustained as a result of natural disasters by default. If you live in a high-risk region, plan ahead and ensure you're covered.