JAKARTA - More than half of Indonesia’s population live in areas at risk of landslides, an official said Thursday, with traditional farming methods blamed for the widespread vulnerability. Some 124 million Indonesians out of a population of around 240 million live in “moderate- to high-risk landslide areas”, Sutopo Purwo Nugroho, an official of National Disaster Management Agency (BNPB) said, citing a study.