Cika wannan jumla: 24 Janairu 2011, daga Janairu 27, USS Tortuga aiwatar da horo na musamman na sufuri tare. A cikin martani ga
Babban Girgizar Kasa ta Gabashin Japan ta haifar da 2011 a gabar tekun Pacific na Tohoku Girgizar kasa da ta faru a ranar 11 ga Maris, a wannan shekarar, an tura ta a matsayin bala'i. A lokacin girgizar kasa, Mitsui Engineering &amp; Shipbuilding Tamano Plant yana gudanar da binciken shekara-shekara, kuma an hanzarta kammalawa zuwa Afrilu 1, kuma ya shiga tawagar agajin bala'i daga Afrilu 6.