Remembering the 1920 Haiyuan earthquake, the second-deadliest of the twentieth century
An M7.8–M7.9 earthquake struck Haiyuan County, China, at 19:05 local time (LT) on December 16, 1920, killing an estimated 259 000 to 273 400 people and triggering tens of thousands of landslides across the Ningxia–Gansu region.











