The 1933 Diexi earthquake occurred in Diexi, Mao County, Szechwan, Republic of China on August 25 with a moment magnitude of 7.3 and a maximum Mercalli intensity of X (Extreme). With up to 9,300 killed, this was the deadliest earthquake of 1933.
The 1925 Dali earthquake occurred at 14:42 UTC on 16 March. It had an estimated magnitude of 7.0 on the surface wave magnitude scale and a maximum perceived intensity of at least IX (Violent) on the Mercalli intensity scale. It had an epicenter in the province of Yunnan in southern China and killed an estimated 5,000 people.
The 1948 Litang earthquake (1948年理塘地震) occurred on May 28, 1948 at 07:11 UTC. It was located near Litang, China. Now situated in the Sichuan Province, Litang County was then called Lihua (理化) County and belonged to the defunct Xikang Province. The earthquake had a magnitude of 7.2, or 7.3.
The 1976 Longling earthquake in Yunnan Province, People's Republic of China, was a doublet earthquake, with two main shocks striking just east of Longling at 12:23:20 and 14:00:22 UTC. The magnitudes were estimated at 6.7 and 6.6, respectively, on the (GCMT) scale, and 6.9 and 7.0 on the scale; Chinese sources put these at 7.4 and 7.3 on the scale. The region is noted for the quantity and intensity of its earthquakes, and the complexity of its tectonics, which are closely related to the collision between the Indian and Eurasian tectonic plates.
The 1988 Lancang–Gengma earthquakes, also known as the 11.6 earthquakes by the Chinese media were a pair of devastating seismic events which struck Lancang and Gengma counties, Yunnan, near the border with Shan State, Burma in the Shan Plateau. The pair of earthquakes occurred thirteen minutes apart with the first registering 7.7 on the moment magnitude scale and second measuring 7.2 on the surface wave magnitude scale. The two earthquakes were assigned their maximum Mercalli intensities of X (Extreme) and IX (Violent) respectively. At least 939 people were killed and more than 7,700 were injured in 20 counties across five prefectures in Yunnan, making it the worst in the country since the 1976 Tangshan earthquake. Both earthquakes resulted in US $270 million in damages and economical losses. Moderately large aftershocks continued to rock the region, causing additional casualties and damages. Much information about the earthquakes and its devastation were hidden by the Chinese government as the country was going through major political and cultural revolutions at the time.
The 2020 Qiaojia earthquake is an earthquake that occurred China, Yunnan, 42 km west of Zhaotong on local time May 18, 2020 21:48. Moment magnitude was 5.1. Various buildings were damaged, and one house collapsed in Zhaoyang District. Four people were killed while 28 people were injured.
