This is a typical water main break. The main water line has been damaged due to weather, erosion or construction damage and is causing the water to gush out into the street. If you ever see a water mail line break you should call the local government for repairs.
This second video is an extreme example of a water main break that is causing a major mess. To prevent water main breaks on your property you need to be sure and do regular maintenance to avoid the headache of this kind of disaster.