Your data needs a safe home. You don't want it destroyed by a natural disaster such as a tsunami, hurricane, tornado, earthquake, or flood. We chose the location for our datacenter to avoid all of those disasters.
Don't take our word for it, though. There are numerous studies and articles put together by third parties that support our decision with their data and conclusions.
One example is The New York Times article "Where to Live to Avoid a Natural Disaster" published in April 2011. The following illustration was used in the article.