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Season
- Season 1 1999-04-12
- Season 2 1970-01-01
- Season 3 1970-01-01
- Season 4 2002-01-01
- Season 5 2003-05-11
- Season 6 2004-04-12
- Season 7 2005-01-01
- Season 8 2006-01-01
- Season 9 2007-01-01
- Season 10 2008-01-01
- Season 11 2009-08-15
- Season 12 2010-02-23
- Season 13 2011-10-06
- Season 14 2012-08-17
- Season 15 2013-01-01
- Season 16 2014-03-30
- Season 17 2015-01-10
- Season 18 2016-01-09
- Season 19 2017-01-15
- Season 20 2018-01-14
- Season 21 2019-01-20
- Season 22 2020-01-18
- Season 23 2021-01-04
- Season 24 2022-01-23
- Season 25 2023-01-22
- Season 26 2024-01-21
Season 26 Episode
- Season 22 The Leonardo da Vinci Enigma: Unraveling the Secrets of Genius
- Season 22 My Notebooks: Seven Years of Tiny Great Adventures
- Season 22 Living Dementia
- Season 22 The Children of the Earthquake
- Season 22 The Huawei Shock
- Season 22 COVID-19: Fighting a Pandemic
- Season 22 Invisible Homeless: People Living in Cars
- Season 22 The Corona Shock: Can We Avoid an Economic Crisis?
- Season 22 The Mystery of the 40-Meter Tsunami: The Great East Japan Disaster
- Season 22 COVID-19: Preventing an Explosive Surge of Infections
- Season 22 Battle on the Brink: The Coronavirus Crisis
- Season 22 COVID-19: Japan Under a State of Emergency
- Season 22 The Coronavirus State of Emergency: Medical and Economic Prospects
- Season 22 COVID-19: Battle on the Cruise Ship
- Season 22 Coronavirus: Exit Which Way?
- Season 22 COVID-19: Big Data Battles the Virus
- Season 22 The Path Forward: Surviving the "With Corona" Era
- Season 22 We're In This Together: Life with the pandemic
- Season 22 The Iron Road
- Season 22 Oswald and JFK UNSOLVED CASES Part 1: The Pawn
- Season 22 Oswald and JFK UNSOLVED CASES Part 2: The Chessmaster
- Season 22 A Fight on Two Fronts: Floods and the Coronavirus
- Season 22 COVID-19: The Next Wave
- Season 22 Bearman of Hokkaido
- Season 22 Deadly Rain: Finding the "Switch" to Save Lives
- Season 22 Battling the Virus: On the Front Lines of Medical Care
- Season 22 Tokyo Miracle City: Gourmet Capital - Keeping Alive the Spirit of Tsukiji
- Season 22 Abe Shinzo Resigns: What Next for Japan?
- Season 22 COVID-19 Pandemic: 132 Critical Days (Part 1)
- Season 22 COVID-19 Pandemic: 132 Critical Days (Part 2)
- Season 22 Civilians in the Crossfire: The Battle of Okinawa
- Season 22 Tokyo Miracle City: Gargantuan Rail Network - The Passionate Pursuit of Punctuality
- Season 22 Leaving No One Behind
- Season 22 Tokyo Miracle City: Anime - Captivating the World Frame by Frame
- Season 22 COVID-19 Pandemic: Transforming the Way We Work
- Season 22 Tokyo Miracle City: Shinise - Tokyo's Time-Honored Businesses
- Season 22 Hong Kong in Turmoil: A Crisis of Identity
- Season 22 Inferno: Letters from Auschwitz
- Season 22 Digital vs. Real: Infodemic - The Onslaught of Fake News
NHK Documentary - Season 22 Episode 9 The Mystery of the 40-Meter Tsunami: The Great East Japan Disaster
0.00 57 minutes The tsunami that struck northeast Japan in March 2011 was among the largest in Japanese history. But it didn't correlate with the intensity of the preceding earthquake. How did the wave get to be so astonishingly big? We investigate a little-known seabed phenomenon that may have contributed. It seems that if a landslide and slow-motion plate shifting occur at the same time, they can cause a tsunami of an enormous size. 9 years after the disaster, a true picture of what happened is beginning to emerge.
