Have seen it, as my daughter lives in Issaquah.
When she moved there, I made her watch Dante’s Peak.
She now has a new respect for the beauty of nature.
Most times there is no explosion, maybe just some vapors or some flow, but that is not the way it ALWAYS acts up.
I drove I-5 by the Toutle just after St. Helens blew. There was still ash on the overpass and a state trooper sliding all over it, directing traffic.