The White House put out this statement from President Obama moments ago...
Statement by the President on the Earthquake in Haiti
“My thoughts and prayers go out to those who have been affected by this earthquake. We are closely monitoring the situation and we stand ready to assist the people of Haiti.”
Background information: The President was informed of the earthquake at 5:52pm. The President asked his staff to make sure that embassy personnel are safe, and to begin preparations in the event that humanitarian assistance is needed. The Department of State, USAID and the United States Southern Command have begun working to coordinate an assessment and any such assistance.