Tsutomu Yamaguchi

1916 - 2010

Photo of Tsutomu Yamaguchi

Icon of person Tsutomu Yamaguchi

Tsutomu Yamaguchi (山口 彊, Yamaguchi Tsutomu) (March 16, 1916 – January 4, 2010) was a Japanese marine engineer and a survivor of both the Hiroshima and Nagasaki atomic bombings during World War II. Although at least 70 people are known to have been affected by both bombings, he is the only person to have been officially recognized by the government of Japan as surviving both explosions.A resident of Nagasaki, Yamaguchi was in Hiroshima on business for his employer Mitsubishi Heavy Industries when the city was bombed at 8:15 AM, on August 6, 1945. He returned to Nagasaki the following day and, despite his wounds, he returned to work on August 9, the day of the second atomic bombing. That morning, while he was being berated by his supervisor as "crazy" after describing how one bomb had destroyed the city, the Nagasaki bomb detonated. Read more on Wikipedia

Since 2007, the English Wikipedia page of Tsutomu Yamaguchi has received more than 1,328,084 page views. His biography is available in 37 different languages on Wikipedia. Tsutomu Yamaguchi is the 21st most popular engineer (up from 33rd in 2019), the 73rd most popular biography from Japan (up from 105th in 2019) and the 2nd most popular Japanese Engineer.

Tsutomu Yamaguchi was most famous for being the only person to survive the atomic bombing of Hiroshima and Nagasaki.

Memorability Metrics

  • 1.3M

    Page Views (PV)

  • 73.25

    Historical Popularity Index (HPI)

  • 37

    Languages Editions (L)

  • 7.66

    Effective Languages (L*)

  • 2.92

    Coefficient of Variation (CV)

Page views of Tsutomu Yamaguchis by language


Among engineers, Tsutomu Yamaguchi ranks 21 out of 325Before him are Alexei Kosygin, Jiro Horikoshi, Jack Kilby, Fritz Todt, Willy Messerschmitt, and John Demjanjuk. After him are Hans Albert Einstein, Andrei Tupolev, José Echegaray, Hermann Oberth, Artem Mikoyan, and Abram Petrovich Gannibal.

Most Popular Engineers in Wikipedia

Go to all Rankings


Among people born in 1916, Tsutomu Yamaguchi ranks 22Before him are Ferruccio Lamborghini, João Havelange, Yehudi Menuhin, Sirimavo Bandaranaike, Maurice Wilkins, and Robert McNamara. After him are Camilo José Cela, C. Wright Mills, Alexander Prokhorov, Peter Finch, P. W. Botha, and Paul Keres. Among people deceased in 2010, Tsutomu Yamaguchi ranks 15Before him are Dennis Hopper, Benoit Mandelbrot, Lech Kaczyński, Claude Chabrol, Zecharia Sitchin, and Bobby Farrell. After him are Alois Brunner, Ali Hassan al-Majid, Vasily Smyslov, Georges Charpak, Maurice Allais, and Louise Bourgeois.

Others Born in 1916

Go to all Rankings

Others Deceased in 2010

Go to all Rankings

In Japan

Among people born in Japan, Tsutomu Yamaguchi ranks 73 out of 5,560Before him are Empress Michiko (1934), Tōgō Heihachirō (1848), Benkei (1155), Shirō Ishii (1892), Kazuo Ishiguro (1954), and Kenzō Tange (1913). After him are Tokugawa Yoshinobu (1837), Nichiren (1222), Dōgen (1200), Kane Tanaka (1903), Kenji Mizoguchi (1898), and Akira Toriyama (1955).

Among ENGINEERS In Japan

Among engineers born in Japan, Tsutomu Yamaguchi ranks 2Before him are Jiro Horikoshi (1903). After him are Masaru Ibuka (1908), Hidetsugu Yagi (1886), and Naoki Hattori (1966).