It's now more than 12 hours since the earthquake struck at just after eight in the morning. We are half-way through the 'golden' 24 hours when emergency workers have their best chances to save people injured in natural disasters.
The powerful earthquake measured almost 7.0 in magnitude. Buildings shook violently, people rushed into the streets. Homes have been destroyed, buildings have collapsed.
TV pictures show a heavily pregnant woman who'd been trapped in the rubble of her house for more than two hours being rescued.
In Longshan town, near the epicentre, tents have been set for medical teams to treat the more than five thousand injured. Doctors have delivered at least one baby, a new life born on a day when many lives have been lost.
The death toll continues to rise, more than a hundred and fifty people have been reported killed so far.
More than two thousand soldiers have been deployed to the area, a massive rescue operation searching for survivors. Landslides making their efforts even more difficult. An army truck came off the road, crashing into a river valley and two soldiers were killed.
Many roads remain blocked and hundreds of trucks, vans and cars carrying medical teams, supplies, earth-moving equipment and soldiers clog the only routes left into the worst affected areas.
5 years ago almost to the day, there was a huge earthquake in the same area, which left more than 90,000 dead and missing.
Widespread devastation affected more than two million people. Within hours of the earthquake hitting, China's prime minister Li Keqiang was on his way, a high profile response from the government.
The massive rescue effort will go on through the night. Some villages are cut-off, and there are reports of many more houses destroyed in areas emergency workers haven't been able to get to.