1970 Tenroku gas explosion

The Tenroku gas explosion (天六ガス爆発事故, Tenroku gasu bakuhatsu jiko) occurred at approximately 5:47 pm on 8 April 1970 in Osaka, Japan, when a gas leak during construction at Tenjimbashisuji Rokuchōme Station in downtown Osaka resulted in a massive explosion and fire that killed 79 people, injured 420 others, and damaged 495 buildings. It is one of the worst gas explosions in Japanese history.

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