I once very roughly estimated the weight of the earth above the caldera (that weight who's energy will sink into the lava and thus push it up - some of which becomes airborn). 15 peta tons? The top on this bottle "weighs allot" and that contributes to the energy and size of it's destruction (after expanding gasses escaped) (because it is not a rocky peak but instead a huge patch of soil: it is expected it would easily fall in and thereafter lava would be pushed out - a second punch you might say)
would this second outflow be a years long curtain volcano flow or limited to, say, a few days?