The Jishi Gorge outburst flood was a natural disaster that occurred around 1920 BC in China. The water flow during the eruption was one of the largest fresh water flows to occur in our geologic epoch (Holocene) and caused large widespread flooding around the Yellow River, affecting everyone living in the river basin. The flood outbreak was triggered by the bursting of a dam caused by landslides after an earthquake. The flood is suggested [by whom?] to possibly be the disaster that gave rise to the Gun-Yu flood myth,[citation needed] which preceded the establishment of the Xia dynasty. The Lajia archaeological site, downstream of the Jishi Gorge, was first destroyed by the earthquake and later covered by sediments from the flood eruption.[1]