Well, knowing geography will help you avoid earthquake, tornado and volcano areas.
Geography also helps you find good areas for oil or if your a mineral hunter.
A Geolocation API is a communication interface between a client device or application (client-side), and an application or service (server-side) that identifies and returns information about the client's geographical location. An application program interface (API) is code that allows two software programs to communicate with each other.
True, a common cause of Pyroclastic flows is gassed expelled from a volcano during an eruption as well as dense, fast moving solidified lava pieces.