This website contains age-restricted materials including nudity and explicit depictions of sexual activity.
By entering, you affirm that you are at least 18 years of age or the age of majority in the jurisdiction you are accessing the website from and you consent to viewing sexually explicit content.
So much awesome power in that eruption (with non-awesome human and nature/animal consequences).
http://mountsthelens.com/history-1.html
This article is a good play-by-play of how the eruption physically progressed, I particularly like this illustration.