https://youtu.be/3C2HVOB-g5s

I was watching this video about a Chinese Volcano that is "unusual", and in the video it mentions that three volcanoes share this "unusual" feature.

Mount Paektu, China

Yellowstone Caldera, U.S.

Hawaii, U.S.

I don't know why, but I just connected them with lines and thought the triangles seemed unusual.

Any thoughts on this, or am I just being a 'tard?