A new study suggests that the plume of molten rock which lies beneath Yellowstone National Park may be larger than previously thought.
Scientists used a new imaging technique to measure the plume’s electric conductivity and get a clearer picture of its overall size.
“It’s a bigger size. We can infer there are more fluids,” said the study’s co-author Robert B. Smith.
The last major eruption at Yellowstone occurred some 642,000 years ago, according to scientists. The new study makes no mention of the odds of another eruption occurring any time soon.
The full findings of the study will be published in the coming weeks in Geophysical Research Letters, a journal of the American Geophysical Union.