How many super volcanoes are there all together in the world?

Answer 1

There are seven super volcanoes (or megacaldera) in the world.

1. Yellowstone,
2. Long Valley, and
3. Valles Calderas in the United States;
4. Lake Toba, North Sumatra, Indonesia;
5. Taupo Volcano, North Island, New Zealand;
6. Aira Caldera, Kagoshima Prefecture, Kyūshū, Japan; and the
7. Siberian Traps, Russia.

There are actually 22 but most are inactive.

Answer 2

There about 5 Super volcanoes that we know of. One is Yellowstone.Toba,Japan,Italy and New Zealand.

Answer 3

Approximately 5. Yellowstone would kill us all if it erupted with even half steam as it's mouth is 93 miles wide.