At least a meter of ash would blanket parts of the Rocky Mountain range and a few millimeters of the fall out would reach cities on both coasts of the US. If the Yellowstone supervolcano erupted, according to new computer simulation on the event, that’s unlikely to happen anytime soon.
There have been no supereruptions in recorded history that would size up with an explosion spewed by the Yellowstone supervolcano. Even eruptions by Chile’s Quizapu volcano and the Valley of Ten Thousand Smokes in Alaska are magnitudes below a Yellow stone event, according to the simulation on a Yellowstone eruption and the model’s accompanying study.
The Ash3D model simulated Yellowstone’s eruption and the study, Modeling ash fall distribution from a Yellowstone supereruption, was published in the Wiley Online Library.