In Talisay, a rural town in the northeastern Philippines, Raynaldo Dejucos asked his wife and children to stay safe indoors during a storm, worrying about common hazards like lightning or slippery roads. But landslides weren’t on his mind. For Talisay’s 40,000 residents, landslides had never been a concern in their lifetime. Yet, when Dejucos left home last Thursday to check his fish cages in nearby Lake Taal, a mudslide suddenly cascaded down a steep ridge, burying about a dozen homes, including his.