1901 Yunnan earthquake

The 1901 Yunnan earthquake, also known in Chinese sources as the 1901 Dengchuan earthquake, struck western Yunnan, Qing China, on February 15, 1901. A modern Chinese historical compilation gives the earthquake a magnitude of 6.5, an epicenter at 26°01′ N, 100°03′ E, near Dengchuan north of Dali, and an intensity of VIII.^[1]

The earthquake caused severe damage in Dengchuan and nearby lakeside settlements. Historical records describe collapsed walls and houses, deaths among people and livestock, ground cracks, ruptured field embankments, and fissures ejecting black water.^[1] The exact origin time, depth, source fault and death toll are not established in the available historical summaries.

Yunnan lies on the southeastern margin of the Tibetan Plateau, where crustal deformation is related to the collision between the Indian Plate and the Eurasian Plate. Large-scale faulting and earthquake activity in the province are associated with this regional stress field and with the interaction of major fault systems around the Sichuan–Yunnan block.^[2]

Two of the most important tectonic systems in the wider region are the Xianshuihe–Xiaojiang fault system and the Red River Fault zone. Their relationship is central to models of deformation along the southeastern Tibetan Plateau and Yunnan.^[3] The causative fault of the 1901 earthquake has not been identified in the cited historical catalog.

The Chinese historical compilation dates the earthquake to February 15, 1901, corresponding to the 27th day of the 12th lunar month in the 26th year of the Guangxu reign.^[1] The epicenter is given as 26°01′ N, 100°03′ E, in the Dengchuan area of Yunnan, and the magnitude is given as 61⁄2.^[1]

The event is also included in the NOAA National Centers for Environmental Information significant earthquake database, which records destructive earthquakes meeting criteria such as significant deaths, damage, large magnitude, high intensity or tsunami generation.^{[4] [5]} Because the earthquake predates local instrumental seismology, its parameters are historical estimates rather than instrumentally determined values.

Damage was most severe in Dengchuan. The historical record quoted in the 2008 compilation states that walls and houses collapsed, people and livestock were crushed, and houses near the East and West lakes were almost entirely destroyed.^[1] The same account records cracked field embankments and ground fissures from which black water was ejected.^[1]

No reliable total for fatalities, injuries, economic loss, or destroyed houses is established in the cited local record. The wording of the historical account indicates substantial casualties, but it does not give a precise numerical death toll.^[1]

• List of earthquakes in China
• List of earthquakes in Yunnan
• 1913 Eshan earthquake
• 1925 Dali earthquake

• Gu, Gongxu, ed. (1983). 中国地震目录 [Catalogue of Chinese Earthquakes] (in Chinese). Beijing: Science Press.
• Allen, C. R.; Luo, Z. L.; Qian, H.; Wen, X. Z.; Zhou, H. W.; Huang, W. S. (1991). "Field study of a highly active fault zone: The Xianshuihe fault of southwestern China". Geological Society of America Bulletin. 103 (9): 1178–1199. doi:10.1130/0016-7606(1991)103<1178:FSOAHA>2.3.CO;2.
• "Historical earthquake data" (in Chinese). National Earthquake Science Data Center. Retrieved July 2, 2026.

• NCEI Significant Earthquake Information: China: Yunnan Province
• NCEI Significant Earthquake Database
• National Earthquake Science Data Center: Historical earthquake data