The 1920 Haiyuan earthquake (Chinese: 海原大地震; pinyin: Hǎiyuán dà dìzhèn) occurred in Haiyuan County, Ningxia Province, Republic of China at 19:05:53 (UTC+8) on 16 December 1920. It was also called the 1920 Gansu earthquake because Ningxia was a part of Gansu Province when the earthquake occurred. It caused destruction in the Lijunbu-Haiyuan-Ganyanchi area and was assigned the maximum intensity on the Mercalli intensity scale (XII Extreme). Estimates of the death toll range from 258,707 to 273,407, making it one of the deadliest earthquakes in China and disasters in China by death toll.
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