A man sits in front of the memorial wall bearing names of victims of the 1976 earthquake in Tangshan, north China's Hebei Province, July 28, 2012. Saturday marked the 36th anniversary of the Tangshan earthquake. Tangshan lost 240,000 lives to a devastating 7.8-magnitude earthquake on July 28, 1976, which was believed to be one of the deadliest natural disasters of the 20th century. [Photo/Xinhua]

People hold flowers to remember their loved ones in front of the memorial wall bearing names of victims of the 1976 earthquake in Tangshan, north China's Hebei Province, July 28, 2012. [Photo/Xinhua]