China's state media say death toll from quake in country's northwest rises to 75

China says the death toll from a shallow earthquake in country's northwest has risen to 75.

The quake struck a dry, hilly farming area in western China early Monday near the city of Dingxi in Gansu province.

The government's earthquake monitoring service said an additional 459 people were injured.

The center said the initial quake at 7:45 a.m. (2345 GMT Sunday) was magnitude-6.6 and subsequent tremors included a magnitude-5.6. The center said it struck about 20 kilometers (12.4 miles) beneath the surface, while the Gansu provincial earthquake administration said it was just 6 kilometers (3.7 miles) deep.

The U.S. Geological Survey measured the magnitude of the initial quake as 5.9 and the depth at 10 kilometers (6 miles).