Road, rail, air and phone links to the epicentre of the 7.9-magnitude quake were cut, and this stops people getting in to help. It is feared that the quake was China's deadliest since 1976, when 240,000 people were killed in the city of Tangshan, near Beijing. There are still many, many people out in the streets. They don't want to go back into the buildings because there are rumours of aftershocks.
A professor at the University of Leeds who has researched earthquakes in China, said: "You can get very large earthquakes occurring where buildings are well constructed, and you might get 50 or 100 people dying. If the buildings are poorly constructed, you can get 10,000 or 20,000 deaths."
Just east of the epicenter, 1,000 students and teachers were killed or missing at a collapsed high school . Many mums and dads are still waiting outside schools to see if their “only child” is going to be pulled out of the rubble under the collapsed buildings. Many school pupils are still missing and this is their future.