How to simulate a volcanic eruption in your kitchen:
1) Make spaghetti sauce.
2) Spoon some into a Tupperware container.
3) Get the bright idea that the contents will settle nicely if you bang the container down on your counter.
4) Execute idea with gusto.
5) Clean red sauce off your hair, eyes, shirt, stove, fruit bowl, toddler . . .
Note: Do not wear white apparel when attempting this experiment.