What is the Most Dangerous Natural Disaster? Wildfires are caused by different factors, including droughts and human activities. Wildfires can occur anywhere in the United States or the world, and commonly occur in Canada, Australia, and South Africa. Previous Next Pages: 1 2 3 4 5 6 7 8 9 10 cyclones Droughts Earthquakes Extreme cold Extreme heat flood Hurricanes Landslides Most Dangerous Natural Disaster Natural Disaster Tornadoes Typhoons Volcanic Wildfires 2024-02-01 MahdisM