A person injured during an earthquake receives treatment at the People's Hospital of Jishishan County, northwest China's Gansu Province, Dec. 19, 2023. A 6.2-magnitude earthquake jolted the county in Gansu at midnight on Monday. Some of the injured were sent to the People's Hospital of Jishishan County. (Photo by Shi Youdong/Xinhua)

A person injured during an earthquake receives treatment at the People's Hospital of Jishishan County, northwest China's Gansu Province, Dec. 19, 2023. A 6.2-magnitude earthquake jolted the county in Gansu at midnight on Monday. Some of the injured were sent to the People's Hospital of Jishishan County. (Photo by Shi Youdong/Xinhua)

A person injured during an earthquake receives treatment at the People's Hospital of Jishishan County, northwest China's Gansu Province, Dec. 19, 2023. A 6.2-magnitude earthquake jolted the county in Gansu at midnight on Monday. Some of the injured were sent to the People's Hospital of Jishishan County. (Photo by Shi Youdong/Xinhua)

A person injured during an earthquake receives treatment at the People's Hospital of Jishishan County, northwest China's Gansu Province, Dec. 19, 2023. A 6.2-magnitude earthquake jolted the county in Gansu at midnight on Monday. Some of the injured were sent to the People's Hospital of Jishishan County. (Photo by Shi Youdong/Xinhua)

A medical worker transfers an injured person in Liuji Town of Bonan-Dongxiang-Salar Autonomous County of Jishishan in Linxia Hui Autonomous Prefecture, northwest China's Gansu Province, Dec. 19, 2023. A 6.2-magnitude earthquake jolted the county in Gansu at midnight on Monday. Some of the injured were sent to the People's Hospital of Jishishan County. (Photo by Shi Youdong/Xinhua)