China earthquake
Chinese paramilitary police take care of a survivor after an earthquake in Jiuzhaigou county, Ngawa prefecture, Sichuan province, China August 9, 2017.Reuters

Thirteen people, including six tourists, were killed and 175 injured when a 7.0 magnitude earthquake struck a remote, mountainous part Sichuan in China's southwest, the provincial government and official media said on Wednesday.

The quake hit a sparsely populated area 200 km (120 miles) northwest of the city of Guangyuan late on Tuesday at a depth of 10 km (6 miles), the U.S. Geological Survey said. It was also close to the Jiuzhaigou nature reserve, a tourist destination.

A separate quake with a magnitude of 6.6 struck a remote part of China's far northwestern region of Xinjiang, more than 2,000 km (1,240 miles) away, on Wednesday morning, the Chinese earthquake administration said. There were no immediate reports of casualties there.

The Sichuan government said 100 tourists had been trapped by a landslide following Tuesday's quake. Six tourists were among those killed, according to the official China News Service.

The state-run Xinhua news agency said a total of 13 people had been killed, citing the provincial government, and that as many as 31,500 tourists had been evacuated from the quake zone.