1786 Kangding-Luding earthquake
1786 CE.
Shown on the map at 29.900°, 102.000°.
An earthquake occurred on 1 June 1786 in and around Kangding, in what is now China's Sichuan province. It had an estimated magnitude of about 7.75 and a maximum perceived intensity of X (Extreme) on the Mercalli intensity scale. The initial quake killed 435 people. After an aftershock nine days later, a further 100,000 died when a landslide dam collapsed across the Dadu River.
Text from the Wikipedia article 1786 Kangding-Luding earthquake, licensed CC BY-SA 4.0.