 A portion of the fault in Aysén Region likely slipped (moved) in an aftershock a few weeks after the 1960 Valdivia earthquake.This same portion slipped again in April 2007 causing earthquakes in Aysén Fjord, triggering landslides and a local tsunami.The fault name was coined by Francisco Hervé, I. Fuenzalida, E. Araya and A. Solano in 1979.