Sad memories of Tangshan earthquake remembered

People visit an electronic map during an exhibition marking the 30th anniversary of an earthquake in Tangshan City, north China's Hebei Province July 24, 2006. Tangshan was nearly leveled by an earthquake measuring 7.8 degrees on the Richter scale on July 28, 1976, leaving some 240,000 people dead, 160,000 severely injured and more than 4,000 children orphaned.

People visit an exhibition marking the 30th anniversary of an earthquake in Tangshan City, north China's Hebei Province July 24, 2006. Tangshan was nearly leveled by an earthquake measuring 7.8 degrees on the Richter scale on July 28, 1976, leaving some 240,000 people dead, 160,000 severely injured and more than 4,000 children orphaned.