Was today a supervolcano erupting?
NO
No — none of Earth's supervolcanoes is erupting; Yellowstone's annual odds are about 1 in 730,000.
Why
- USGS: no evidence a Yellowstone blast is coming soon
- Campi Flegrei sits on yellow alert, uplift about 0.4 inches a month
- No super-eruption of VEI 8 in roughly 25,600 years