In the 2009, science fiction disaster film, 2012,the destruction of the majority of planet Earth starts off when seismic tremors increases rapidly along the west coast of the United States, causing a mega earthquake that ruptured the San Andreas Fault, ultimately leading to a massive eruption of the Yellowstone Caldera. If movies are seen as a form of predictive programming or foreshadowing, perhaps we should take the Roland Emmerich film seriously, considering that the film's depiction of the Caldera resulted in monumental cataclysmic chaos across the globe and given the following news report from the Huffington Post.
It's kind of a scary thought to consider the possibility that a 'supervolcano' could be even bigger than scientists initially believed. The volcanic mass, known as the Yellowstone Caldera or more commonly the Yellowstone Supervolcano, was previously measured at about 25 miles by 37 miles wide. However, a new study, set to be published in the Geophysical Research Letters journal says there may be more to it than that. Using a new method of magnetic imaging, scientists have come to theorize that the plume feeding the underground volcano could extend further than seismic measurements taken in 2009 suggest.
From the BBC: "The new study, using electrical conductivity, can only see about 320km (200mi) below ground. But it shows the conductive part of the plume dipping more gently, at an angle of perhaps 40 degrees to the west, and extending perhaps 640 km (400 miles) from east to west. The caldera has seen quite a bit of activity in recent years. According to National Geographic, some areas of Yellowstone have seen the ground rise as much as much as 10 inches as a result of swelling magma."
The caldera has seen quite a bit of activity in recent years. According to National Geographic, some areas of Yellowstone have seen the ground rise as much as much as 10 inches as a result of swelling magma. However, the ground has swelled and reduced numerous times over the years. While ground swelling can be a sign of a pending explosion, such as in the case of Mt. St. Helens, it doesn't necessarily mean an eruption is looming, according to National Geographic.