A shallow magnitude-5.5 earthquake struck the mountainous region of Tibet on Wednesday, blocking roads and leaving at least six people injured by falling debris, state media reported.

The quake struck at 9:15 a.m. (0115 GMT), 70 kilometers (44 miles) northwest of Gyamotang village at a depth of just 10 kilometers (6 miles), according to the U.S. Geological Survey. The quake region is near Tibet's border with Qinghai province to the north.

The earthquake rattled houses and set off landslides that blocked roads, leaving at least six injured, according to the China News Service, which cited the Dingqing county emergency management office.

China's official Xinhua News Agency quoted the regional seismological bureau as saying that the epicenter was in Kata Town, about 2,200 kilometers (1,400 miles) from the capital Beijing and the site of two major Buddhist temples.

The town's chief administrator, identified by the single name of Samba, told Xinhua he had seen two injured people on his way to help with rescue efforts in a village 10 kilometers (6 miles) away. Roads leading to Guodong village crumbled, Xinhua said, hampering rescuers.

Calls to the town, county and city authorities rang unanswered, although the Tibetan regional fire service said in an online statement that rescuers were on their way to Kata.

The region of western China in the foothills of the Himalayas is an active earthquake zone, and a 2010 quake in nearby Yushu killed almost 3,000 people.

Nearly 90,000 people were killed in China's worst quake in recent years, a 7.9 magnitude temblor that struck Sichuan province in May 2008.