Super Typhoon Yagi ripped roofs off buildings, sank boats and triggered landslides in Vietnam, leaving nine people dead as of Sunday, after tearing through southern China and the Philippines. Super Typhoon Yagi ripped roofs off buildings, sank boats and triggered landslides in Vietnam, leaving nine people dead as of Sunday, after tearing through southern China and the Philippines. Environment Phys.org – latest science and technology news stories