A 6.3 magnitude earthquake hit Yunnan province in southwestern China over the weekend, killing hundreds of people. The death toll at last count was 398 people, but with thousands of buildings collapsed and recovery efforts continuing, it’s likely to rise.

In all, more than 55 million people were affected. Here’s a map of the enormous area where shaking was felt:

china-quake1

Earthquakes in this area of China are relatively common, as there are a number of fault lines running through it. A quake in Sichuan province, also in the southwest, killed almost 70,000 people in 2008.

China quake 2