This Day in Failure: July 28

2000: Twelve people are killed and approximately 110 are injured when an empty train slams into a passenger train in Sao Paulo, Brazil. The collision is caused by an electricity blackout.

1976: An earthquake measuring between 7.8 and 8.2 magnitude on the Richter scale flattens the Chinese city of Tangshan, killing an estimated 242,000 people.