The United States help Japan with the aftermath of the massive 8.9 magnitude earthquake and tsunami that struck on 3/11/11

President Obama received a briefing this morning in the Oval Office on the earthquake in Japan and the tsunami warnings across the Pacific from several senior U.S. government officials.
"We currently have an aircraft carrier in Japan and another is on its way," he said at the news conference. "We also have a ship en route to the Marianas Islands to assist as needed."
Tsunami warnings have been issued across the Pacific, and initial waves from the tsunami have reached Guam and other U.S. territories, Alaska and Hawaii, and other areas along the West Coast.
(direct quoted from http://www.army.mil/-news/2011/03/11/53190-gates-pledges-us-help-for-japan/)