Haiyuan County ( ) is a county under the administration of the prefecture-level city of Zhongwei in the southwest of the Ningxia Hui Autonomous Region of the People 's Republic of China . It originally belonged to Gansu province , and is now bordered by Gansu to the west . The county has a total area of , and a population of approximately 360,000 people . It was the site of the 1920 Haiyuan earthquake , which killed at least 200,000 people
1920 Haiyuan earthquake
1920 Haiyuan earthquake
Haiyuan County