This leads to partition of deformation between the subduction zone, the fore-arc and the intra-arc region where the fault lies.There is evidence that the fault broke as a 9.07 subevent in the 1960 Valdivia earthquake.
The resulting deformation is split between the subduction zone, the fore-arc sector, and the intra-arc area where the fault line is situated. Historical data indicates that the fault experienced a 9.07 magnitude rupture during the 1960 Valdivia earthquake.