http://www.cbsnews.com/8301-503543_162-20042505-503543.html4President Barack Obama said Saturday that one U.S. aircraft carrier, the USS Ronald Reagan, was already off the coast of Japan, and another was on its way. Washington has also dispatched urban search and rescue teams, according to U.S. Ambassador John Roos.
CBS News correspondent David Martin reports that the USS Reagan is serving as a "lily pad" for Japanese helicopters, i.e. a place to land and refuel. Reagan has a supply ship with it, so it will be able to keep refueling Japanese helicopters indefinitely. There are two escort ships with the USS Reagan and four more destroyers on the way to conduct Search and Rescue.
The next big deck ship to arrive will be the Tortuga, probably sometime tomorrow. It has just finished loading heaving lift MH-53 helos in Korea and is en route to Honshu. The Essex, an amphibious ship carrying a Marine Expeditionary Unit is in the South China Sea but still a couple days away. It will rendezvous with two other amphibious ships: Harpers Ferry and Germantown.
The Blue Ridge, a command ship loaded with relief supplies, has left Singapore but it will get to Japan after Essex.
This is very different from Haiti where the local government had no resources and was basically helpless until the U.S. military arrived. The Japanese have hundreds of helicopters.