> how often are big eruptions followed by even bigger eruptions? Quite often, I'd say. Disruptions in the stability of geological processes frequently have a

> how often are big eruptions followed by even bigger eruptions? Quite often, I'd say. Disruptions in the stability of geological processes frequently have a compounding domino effect... a volcanic eruption is often preceded by the opening of smaller vents, small landslides can trigger large landslides, small sinkholes can suddenly develop large ones, a trickle over a levee can turn into a total breach, most M>7.0 earthquakes have foreshocks... You can't tell where the peak severity will be in a cluster of geological events except in hindsight after the entire cluster is passed.