There are thousands of volcanic features distributed throughout the southwest United States, which are grouped together in volcanic fields. The Yellowstone Volcano Observatory (YVO) monitors these volcanoes using a combination of techniques. While YVO hasn’t seen anything to suggest magma is on the move, the area is stretched and pulled apart to produce numerous tectonic earthquakes. YVO keeps an eye on these volcanoes and the Yellowstone Volcano, as described in this monthly video update by Mik

When Yellowstone’s supervolcano erupted 2.1 million years ago, it made a hole the size of Rhode Island. Makes you wonder what will happen the next time it erupts. | National Geographic TV

A supervolcano beneath America’s most famous National Park has the potential to become the biggest natural disaster in modern history. 🌋 Stream #YellowstoneSuperVolcano: American Doomsday on discovery . http://discoverypl.us/388k3GH | Science Channel

With footage from people on the ground and interviews with the survivors and rescuers, this documentary shows how the events of that terrifying day unfolded. 🎬 The Volcano: Rescue from Whakaari | Netflix