The ioSafe is a super duper hard drive which is Fire Resistant, Waterproof n Disaster Proof . The video below shows some outlandish test done on this HardDrive.
The ioSafe external hard drive is almost completely disaster-proof. It can withstand temperatures up to 1550º F, can withstand being immersed in up to 10 feet of water for up to 36 hours and, on NAS and USD-RAID models - not the Solo - rebar-reinforced crush-zones enable the hard drive to survive the collapse of a two story building. Additionally, as a theft-protection measure, the ioSafe has holes bored in its shell so that it can easily be bolted to the floor.
In short, whether your house is flooded, burned to a cinder or flattened by a tornado, the data on the ioSafe will still be intact