Was a national park full of hot springs and lakes full of sulpher.
Scientists noticed lots of volcanic activity and found out that it was actually the crater of a super volcano.
The magma chamber is belived to be 80km long, 40km wide and 8km deep!
Evidence shows that the magma below Yellowstone is shifting.
Signs of increasing activity at Norris, the ground has risen by almost a metre in some places!
There is a 1 in 600,000 chance of an eruption
What would happen if an eruption did happen?
If it exploded the sun would black-out for 30 years
Which would mean that natural farming and solar energy would be imposible
The sky would turn red from sulphur
There would be no electricity no fresh water
Hospitals would eventually run out of power
Temputure drops by 20°C
Super Volcano : a mega colossal volcano that erupts at least 1000km³ of material
Caldera: the depression of the volcano marking the collapsed magma chamber
Fissures - extending openings along a line of weakness that allows magma to escape
Geothermal : water that is heated beneath the ground which comes to the surface in a variety of ways.
Geyser: a geothermal feature in which water erupts into the air under pressure.
Hot Spot : a section of the earth's crust where plumes of magma rise, weakening the crust. These are away from plate boundaries.