X-RAY EARTH

X-Raying the Earth reveals the largest volcano on the planet lies beneath Yellowstone National Park. It has erupted many times before - on a scale so big it has plunged the earth into a volcanic winter. No-one alive has ever witnessed such a catastrophic event. Now the race is on to find out what could trigger a future eruption and how much warning would we get.

X-Raying the Earth reveals the Atlantic island of La Palma has collapsed several times in mega-landslides. Another could trigger a tsunami with enough power to cross the Atlantic Ocean and decimate the US East Coast. Now scientists race to understand what could trigger the tsunami - and just how devastating the catastrophe could be.

X-raying the earth reveals a vast fault 80 miles off the Pacific Northwest coast. For over 300 years pressure has been silently building. When it slips if will generate a megaquake and tsunami that will devastate the region threatening the lives of 15 million residents living in Cascadia. Now scientists are racing to understand how bad the destruction will be when the really Big One hits.