USS George Washington will remain in the local waters of Japan as part of US's comprehensive support and commitment to Japan.
"The USS George Washington is scheduled to remain in the local waters of Japan, but is being moved at this point as a precaution, to ensure she is available if needed to respond as necessary and as relevant to any situation throughout the region and so she can sustain a state of readiness for the long term for the defense of Japan," Defence Department spokesman Cmdr Leslie Hull-Ryde said.
Reports said that potassium iodide pills have been distributed to sailors and families remaining at the naval base and at the Atsugi Naval Air Facility.