(CNN) At least four people were killed and 30 more injured late Tuesday when a powerful earthquake struck a popular tourist area of Jiuzhaigou County in southwest China’s Sichuan Province, according to state-owned media outlet Xinhua.
Rescuers are working to clear the rubble, and there are people buried beneath the debris, state broadcaster CCTV reported.
While the U.S. Geological Survey reported a 6.5-magnitude quake 35 kilometers (22 miles) west-southwest of Yongle, Xinhua reported it was 7.0-magnitude, citing the China Earthquake Networks Center.
Residents in Chengdu, the provincial capital — 300 kilometers (186 miles) away from the epicenter — told Xinhua they felt the quake.
The China Earthquake Administration has launched a Level I emergency response, the highest of its four levels, Xinhua reported.
Almost 400 fire trucks and more than 1,100 firefighters were dispatched to the scene, CCTV said. They are bringing with them 55 life detectors, 30 rescue dogs and 24 generators, the station reported.
Local authorities announced the closure of the Jiuzhaigou tourist area, which includes a national park known for its waterfalls and topographical formations, beginning Wednesday.
Yu Qian, a local taxation bureau official, told Xinhua that the earthquake cut off power and disrupted phone service in her neighborhood.
Photos from the scene showed what appeared to be pieces of buildings lying in the street, a stone the height of a small automobile in the street and a heavily damaged hotel entrance, its revolving doors twisted and rubble lying in front of them.