The startling news was presented in a research paper analysing the catastrophic impacts of a major volcanic Yellowstone eruption.
Penned by hydrologist Larry Mastin, of the US Geological Survey (USGS), the paper titled Modelling ash fall distribution from a Yellowstone supereruption was published in Geochemistry, Geophysics, Geosystems.
The dire study reads: “We simulated eruptions lasting three days, one week, and one month, each producing 330km cubed of volcanic ash, dense‐rock equivalent (DRE).
“Results demonstrate that radial expansion of the umbrella cloud is capable of driving ash upwind (westward) and crosswind (N‐S) in excess of 1500km, producing more‐or‐less radially symmetric isopachs that are only secondarily modified by ambient wind.
READ MORE: Yellowstone volcano: Imminent ERUPTION will sound alarm before cataclysm, experts warn