Although, scientists say there's little evidence that Yellowstone supervolcano is set to blow. The Yellowstone Volcano Observatory have maintained the danger level as green or normal.
Recent study shows that beneath the Yellowstone volcano lies a so-called mantle plume: a chimney-like structure that reaches thousands of kilometres deep to the border of the Earth's core and mantle.
Scientists have debated the presence of a plume for years, and if one does exist, it would explain the heat that bubbles to the surface in the park.
The current earthquake swarm around the Yellowstone supervolcano is now the longest ever recorded. The swarm started June 12, and over the past three or so months, around 2,500 earthquakes have been recorded so far.
