April 22, 1992 – At 10:00 in the morning, residents of Guadalajara, Mexico noticed a manhole cover was bouncing up and down as white smoke puffed out of the sewer. Minutes later, the first of many explosions would rip the streets apart. When it was all over, 252 people were dead, 500 were injured and over 15,000 were left homeless. Aftermath of the Guadalajara sewer explosion.
Aftermath of the Guadalajara sewer explosion.
The disaster was mainly caused by a leaking Pemex gas line that dumped gasoline into the sewer system."