Claim: A 2018 update to a USGS report reclassified the risk of a supereruption from the Yellowstone caldera as being higher than previous assessments.
Fact-check: Did the USGS 'Increase' Yellowstone's Volcanic Threat Level?
Verdict: false
Organisation: Snopes
Author: Alex Kasprak
Date published: 2018-11-01T16:34:18