Kanto Plainsman Kanto Plainsman The Kanto Plainsman was a consolidated United States Air Force newspaper out of Tachikawa Air Base from 1961 to 1970 covering news and events of that base, as well as Fuchu Air Station, Grant Heights Housing, Green Park Housing, Washington Heights Housing, Yamato Air Station, Showa Air Station, Iwo Jima, Marcus Island, Ofuna and other minor detached Air Force properties in Japan's Kanto Plain area. The only nearby base to retain its own newspaper was Yokota Air Base. The first issue, Vol. I no. 1, appeared on 30 June 1961, replacing Tachikawa's paper "The Marauder" and other separate
2011 Tōhoku earthquake and tsunami and south. From the averaged coupling coefficient of 0.5–0.8 in the source area and the seismic moment, it was estimated that the slip deficit of this earthquake was accumulated over a period of 260–880 years, which is consistent with the recurrence interval of such great earthquakes estimated from the tsunami deposit data. The seismic moment of this earthquake accounts for about 93% of the estimated cumulative moment from 1926 to March 2011. Hence, earthquakes with magnitudes about 7 since 1926 in this area only had released part of the accumulated energy. In the area near the trench, the coupling coefficient