1960 Valdivia earthquake
The 1960 Valdivia earthquake and tsunami (Spanish: Terremoto de Valdivia) or the Great Chilean earthquake (Gran terremoto de Chile) occurred on 22 May 1960. Most studies have placed it at 9.4–9.6 on the moment magnitude scale, making it the strongest earthquake ever recorded, while some studies have placed the magnitude lower than 9.4.