Facebook starts safety check for Davao City blast

Minutes after the incident, Facebook has started a safety check tool for subscribers to check their friends’ wellbeing in the face of the explosion that hit a popular night market in Davao City. https://www.facebook.com/safetycheck/davao-city-philippines-explosion-sep02-2016/?uid=788457777 The feature is activated by the social media company during natural or man-made disasters to quickly determine whether people in the affected geographical area are safe. The safety check is activated based on combination of a certain number of people posting about a particular crisis plus an alert from one of Facebook’s third-party sources.