JenniferWell, I guess you could compare the two volcanoes. They're both associated with subduction zones and they both erupt rather infrequently. Pinatubo went from no unrest to big eruption in only a few months. On the other hand, Soufriere Hills has been very gradually picking up the intensity of its activity. Whether that will lead to a Pinatubo-sized eruption or not is uncertain but probably unlikely. There isn't evidence that Soufriere Hills has ever had any really huge eruptions.
Sincerely,
Scott Rowland
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