Tauredunum event
The Tauredunum event (German: Tauredunum-Ereignis) of 563 AD was a tsunami on Lake Geneva (then under the Frankish territory of the Kingdom of Orleans), triggered by a massive landslide which caused widespread devastation and loss of life along the lakeshore. According to two contemporary chroniclers, the disaster was caused by the collapse of a mountainside at a place called Tauredunum at the eastern end of Lake Geneva.