(yes)
well if i remember right it was one of the steps for a caldera forming eruption. (but not limited to). basically the steps were:
pressure begins to build as magma begins to rise to the surface, this huge dome begins to form (i think)
the pressure hits its max and a very explosive eruption occurs
after the eruption, there is nothing left in that dome so it collapses and fills up with water
then volcanoes on the rim of the caldera form and pressure begins to form
regional tumescence may occur which is the repeat of the beginning.
so in simple terms: builds up to a point and rises, explodes, collapses, comes back up again to maybe explode one more time and dies down for a long time. you put it together =P
you can find a caldera formation in california at the eastern sierra nevedas, mammoth mountain is one of the mountains on the rim of this kind of eruption, that eruption had an equivalent to something like 300 hiroshima bombs. ok im done being a nerd.
