Today is the 30th anniversary of the explosion of Mount St. Helens.
And more recently in Iceland ...
See also: Mount St. Helens VolcanoCams - Mount St. Helens National Volcanic Monument
We have lots of books about volcanoes. Specifically on Mount St. Helens, see:
J 551.21 FURGANG Mount St. Helens : the smoking mountain by Kathy Furgang.
By the way, searching for information on the 1980 eruption can be tricky.
Try Mount Saint Helens
and Mt. Saint Helens
and Mount St. Helens
and Mt. St. Helens