Figure 29From: Investigation of the initiation mechanism of an earthquake- induced landslide during rainfall: a case study of the Tandikat landslide, West Sumatra, Indonesia Time history of earthquake acceleration, pore pressure ratio ( r u ), factor of safety ( FoS ) considering r u ( FoS with r u ) and without considering r u ( FoS w/o r u ) at the a. toe; b. middle; and c. crest. Back to article page