2011 Tōhoku earthquake and tsunami 2011 Tōhoku earthquake and tsunami The was a magnitude 9.0–9.1 (M) undersea megathrust earthquake off the coast of Japan that occurred at 14:46 JST (05:46 UTC) on Friday 11 March 2011, with the epicentre approximately east of the Oshika Peninsula of Tōhoku and the hypocenter at an underwater depth of approximately . The earthquake is often referred to in Japan as the and is also known as the 2011 Tōhoku earthquake, and the 3.11 earthquake. It was the most powerful earthquake ever recorded in Japan, and the fourth most powerful earthquake in the world since modern record-keeping began in 1900.
Kanto Plainsman all Air Force newspapers was intended as key source of command information. A Japanese-language version of the paper was published for Japanese nationals working at the above-mentioned American Air Force facilities. The final issue of Kanto Plainsman, Vol. X No. 16, was published on 24 April 1970. On that date it was merged with the Yokota Air Base newspaper The Afterburner, which was renamed the Fuji Flyer. The demise of "Kanto Plainsman" occurred soon after flying operations ceased at Tachikawa and the Air Force began its Kanto Plain Consolidation Program. MSgt George E. O'Brien was the "Kanto Plainsman"'s editor for