NEW : China says at least 10,000 dead but it expects casualties to rise . China : Bruce Presgrave , a geophysicist with the U.S. Geological Survey , said this quake could cause major damage because of its strength and proximity to major population centers . Rain forest rescue , aid workers in worst - hit area . Nearly 100 children killed when a school building collapses , 50 bodies found . This magnitude quake is felt throughout much of China .
NEW : China says at least 10,000 dead but it expects casualties to rise . China : Rain forest rescue , aid workers in worst - hit area . Nearly 100 children killed when a school building collapses , 50 bodies found . This magnitude quake is felt throughout much of China .