1947 Historical Events April 18

The Operation Big Bang, the largest non-nuclear man-made explosion to that time, destroys bunkers and military installat

The Operation Big Bang, the largest non-nuclear man-made explosion to that time, destroys bunkers and military installations on the North Sea island of Heligoland, Germany.

On April 18, in the year 1947, The Operation Big Bang, the largest non-nuclear man-made explosion to that time, destroys bunkers and military installations on the North Sea island of Heligoland, Germany. This event is recorded as a Historical Events event in the history of April 18, one of 277 recorded events on this date across all of history.

Operation Big Bang or British Bang was the explosive destruction of bunkers and other military installations on the island of Heligoland. The explosion used 7400 tons of surplus World War II ammunition, which was placed in various locations around the island and detonated at 1 p.m. on 18 April 1947 by the Royal Navy. The energy released was 13 terajoule, or about 3.2 kilotons of TNT equivalent making it the largest artificial non-nuclear explosion at that time. The objective of the blast was to destroy the bunkers and military installations on the North Sea island of Heligoland, but due to the enormous amount of explosives it was foreseen that the entire island might be destroyed. The porous sandstone that makes up the island allowed the blast wave to escape so only the southern tip of the island was destroyed, but there was considerable damage to the northern tip.

Key Facts

  • This event took place on April 18, 1947 (AD era).
  • It is categorised as a Historical Events event in recorded history.
  • Referenced in 1 Wikipedia article.
  • The event is associated with a specific geographical location (see map below).
  • Wikipedia source last updated on 5 April 2026.

On This Date in History 277

Type Year Date Event
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Notable Deaths 2022 Apr 18 Harrison Birtwistle, British composer (born 1934)
Historical Events 2019 Apr 18 A redacted version of the Mueller report is released to the United States Congress and the public
Notable Deaths 2019 Apr 18 Lyra McKee, Irish journalist (born 1990)
Selected Events 2019 Apr 18 The United States Department of Justice released a redacted version of the Mueller report about the investigation of Rus
Historical Events 2018 Apr 18 King Mswati III of Swaziland announces that his country's name will change to Eswatini
Historical Events 2018 Apr 18 Anti-government protests start in Nicaragua
Notable Deaths 2014 Apr 18 Guru Dhanapal, Indian director and producer (born 1959)
Notable Deaths 2014 Apr 18 Sanford Jay Frank, American screenwriter and producer (born 1954)
Notable Deaths 2014 Apr 18 Brian Priestman, English conductor and academic (born 1927)
Notable Deaths 2013 Apr 18 Goran Švob, Croatian philosopher and author (born 1947)
Notable Deaths 2013 Apr 18 Anne Williams, English activist (born 1951)
Notable Deaths 2012 Apr 18 Dick Clark, American television host and producer, founded Dick Clark Productions (born 1929)
Notable Deaths 2012 Apr 18 René Lépine, Canadian businessman and philanthropist (born 1929)
Notable Deaths 2012 Apr 18 Robert O
Notable Deaths 2012 Apr 18 K
Notable Deaths 2008 Apr 18 Germaine Tillion, French ethnologist and anthropologist (born 1907)
Selected Events 2007 Apr 18 A ladle spilled 30 tonnes (33 tons) of molten steel in a factory in Liaoning, China, killing 32 workers
Notable Deaths 2004 Apr 18 Kamisese Mara, Fijian politician, 2nd President of Fiji (born 1920)
Notable Deaths 2002 Apr 18 Thor Heyerdahl, Norwegian ethnographer and explorer (born 1914)
Historical Events 1996 Apr 18 The Israeli military commits the Qana massacre in a deliberate shelling of a United Nations compound near the village of
Notable Births 1996 Apr 18 Ski Mask the Slump God, American rapper
Selected Events 1996 Apr 18 Operation Grapes of Wrath: Israeli forces shelled Qana, Lebanon, killing at least 100 civilians and injuring more than 1
Notable Births 1995 Apr 18 Divock Origi, Belgian footballer
Notable Deaths 1995 Apr 18 Arturo Frondizi, Argentinian lawyer and politician, 32nd President of Argentina (born 1908)
Notable Births 1994 Apr 18 Aminé, American singer-songwriter
Notable Births 1993 Apr 18 Mika Zibanejad, Swedish ice hockey player
Notable Births 1992 Apr 18 Chloe Bennet, American actress
Notable Births 1990 Apr 18 Wojciech Szczęsny, Polish footballer
Notable Births 1989 Apr 18 Alia Shawkat, American actress
Historical Events 1988 Apr 18 The United States launches Operation Praying Mantis against Iranian naval forces in the largest naval battle since World
Historical Events 1988 Apr 18 In Israel John Demjanjuk is sentenced to death for war crimes committed in World War II, although the verdict is later o
Notable Births 1988 Apr 18 Vanessa Kirby, English actress
Notable Deaths 1988 Apr 18 Oktay Rıfat Horozcu, Turkish poet and playwright (born 1914)
Notable Births 1986 Apr 18 Tina Bru, Norwegian politician
Notable Births 1985 Apr 18 Łukasz Fabiański, Polish footballer
Notable Births 1984 Apr 18 America Ferrera, American actress
Notable Births 1983 Apr 18 Miguel Cabrera, Venezuelan baseball player
Notable Births 1981 Apr 18 Audrey Tang, Taiwanese Minister of Digital Affairs and programmer
Historical Events 1980 Apr 18 The Republic of Zimbabwe (formerly Rhodesia) comes into being, with Canaan Banana as the country's first President
Historical Events 1980 Apr 18 The town of Elmore City, Oklahoma holds its first dance in the town's history
Selected Events 1980 Apr 18 Robert Mugabe became the first prime minister of Zimbabwe, beginning a 37-year period in power
Notable Births 1979 Apr 18 Matt Cooper, Australian rugby league player
Notable Births 1979 Apr 18 Kourtney Kardashian, American television personality
Notable Births 1976 Apr 18 Melissa Joan Hart, American actress
Notable Births 1974 Apr 18 Edgar Wright, English filmmaker
Notable Deaths 1974 Apr 18 Marcel Pagnol, French author, playwright, and director (born 1895)
Notable Births 1973 Apr 18 Derrick Brooks, American football player

This article draws on content from Wikipedia, available under CC BY-SA 4.0.

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