Researchers are now building more complex, four-dimensional models — which require supercomputers to run — to track the evolution of the Yellowstone supervolcano over time. Supervolcanoes’ massive eruptions, which have global consequences, require an external trigger, scientists say.
The traditional evolution of an erupting volcano involves a steady pressure increase inside the magma chamber. Eventually, the pressure becomes too great and the volcano blows.
But a new study, published in the Journal of Volcanology and Geothermal Research, suggests internal triggers fail to explain supervolcanoes.