People mourn for their deceased family members and relatives in front of the memorial wall in commemoration of the dead in the 1976 Tangshan earthquake in Tangshan, north China's Hebei Province, on July 28, 2006. Over 10,000 people gathered in Tangshan Friday to commemorate those who lost their lives in the 1976 Tangshan earthquake. The earthquake measuring 7.8 on the Richter scale on early morning of July 28, 1976, killed over 240,000 people.(Xinhua Photo)

A local resident presents flowers to the memorial wall in commemoration of the dead in the 1976 Tangshan earthquake in Tangshan, north China's Hebei Province, on July 28, 2006. People from China and abroad gathered in Tangshan to commemorate those who lost their lives in the 1976 Tangshan earthquake. The earthquake measuring 7.8 on the Richter scale on early morning of July 28, 1976, killed over 240,000 people. (Xinhua Photo)

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