For comparison the height of the ash column for Mt. St. Helens (VEI 5) was 24 km and Pinatubo (VEI 6) 40 km. So this would take it somewhere around high-end VEI 5/low-end VEI 6. https://t.co/yqIyyJ1ltH

— Jim Tang (@wxmann) January 15, 2022