2018 update to the U.S. Geological Survey national volcanic threat assessment
1 Kīlauea HI2 Mount St. Helens WA3 Mount Rainier WA4 Redoubt Volcano AK5 Mount Shasta CA6 Mount Hood OR7 Three Sisters OR8 Akutan Island AK9 Makushin Volcano AK10 Mount Spurr AK11 Lassen volcanic center CA12 Augustine Volcano AK13 Newberry Volcano OR14 Mount Baker WA15 Glacier Peak WA16 Mauna Loa HI17 Crater Lake OR18 Long Valley Caldera CA https://pubs.usgs.go...sir20185140.pdf
These are the volcanos above sea level. There are 10's of thousands submerged beneath the oceans - many are continually active. You left out Yellowstone. Thats one big mother.