Scientists had thought the Haiti earthquake a year ago released stress on a well-known fault. It didn't. Instead, it revealed faults that scientists didn't know existed.
Scientists have found that the devastating Jan. 12 Haiti earthquake has placed stresses on the fault system beneath the island nation, which could lead to another major quake.
The forces that led to the Haiti earthquake are a reminder that the idyllic Caribbean is one of the more geologically active spots on earth, and that a powerful earthquake could strike the region again.