At 3:42 pm on July 28, 1976, an earthquake registering 7.8 on the Richter scale with epicentral intensity of 11 hit Tangshan, one of China's main industrial cities. Some 97 percent of its buildings,...
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At 3:42 pm on July 28, 1976, an earthquake registering 7.8 on the Richter scale with epicentral intensity of 11 hit Tangshan, one of China's main industrial cities. Some 97 percent of its buildings,...