found: Wikipedia, March 25, 2011(2011 Tōhoku earthquake and tsunami, Tōhoku-chihō Taiheiyō-oki Jishin, literally "Northeast region Pacific Ocean offshore earthquake" was a 9.0 magnitude undersea megathrust earthquake off the coast of Japan that occurred at 14:46 JST on Friday 11 March 2011)
found: Los Angeles Times, March 25, 2011(USGS dubs Japan earthquake 'Tohoku.' U.S. Geological Survey officials have chosen a name for the 9.0 temblor ... they are calling it the Tohoku earthquake--shortened from the original name used in Japan ..."Tohoku-Chiho Taiheiyo-Oki" which means "Pacific offshore Tohoku region.")
found: RMS.com website, April 18, 2011(2011 Tohoku Earthquake and Tsunami)
found: Gakuranman.com website, March 25, 2011(Great Tohoku Earthquake)
found: Washington Post, p. A17, April 17, 2011: Naoto Kan, Japanese Prime Minister's editorial, "Japan's road to recovery and rebirth:"(Great East Japan Earthquake)
found: OECD.org website, April 18, 2011(Tohoku Pacific Earthquake)
found: inkworldmagazine.com website, April 18, 2011(Great Tohoku Kanto Earthquake)
found: HUFFPost Denver, April 18, 2011(Great Tohoku Kanto Earthquake and Tsunami)
found: Ministry of Education, Culture, Sports, Science and Technology - Japan website, April 18, 2011(2011 Tohoku Pacific Ocean Earthquake)
found: colintyner.wordpress.com website, April 18, 2011(Great East Japan Disaster, Higashi Nihon Dai-shinsai)
found: Wikipedia, July 25, 2011 ‡b (The Fukushima Daiichi nuclear disaster (Fukushima Dai-ichi genshiryoku hatsudensho jiko) is a series of equipment failures, nuclear meltdowns and releases of radioactive materials at the Fukushima I Nuclear Power Plant, following the 9.0 Tohoku earthquake and tsunami and experts consider it to be the largest nuclear accident since the Chernobyl disaster, but more complex as multiple reactors are involved; reactors 1, 2 & 3 experienced full meltdown; hydrogen explosions destroyed parts of the building housing reactors 1, 3 & 4; an explosion damaged the containment of reactor 2; multiple fires broke out at rector 4; location: Okuma, Fukushima, Japan; Coordinates 37°25ʹ17ʺN 141°1ʹ57ʺE)