“…Other large-scale catastrophic landslides associated with reservoir operations have been reported by Alcántara-Ayala & Domínguez-Morales (2008) (San Juan de Grijalva slide in Mexico, 2007); Wang et al (2004) and Dai et al (2004) (Qiangjianping slide in China, towards the reservoir of the Three Gorges Project, 2003); Chamot (1993), Plaza-Netos & Zevallos (1994), Schuster et al (2002) and Harden (2004) (La Josefina landslide, Ecuador, in 1993). An often reported case in recent years is the giant Tsaoling landslide, Taiwan, that was triggered by the 1999 Chi-Chi earthquake (Chen et al, 2003;Tang et al, 2009;Liao et al, 2011;Wu & Chen, 2011;Yang et al, 2014. ) In general, the interpretation of earthquake-induced motion requires velocity-and, in some cases, displacement-dependent shear strength weakening of the failure surface.…”