This is an attempt to visualize data from recent seismic activity around Mt. Saint Helens. Nothing fancy, I simply used Google Sketchup and imported the quake map off the Pacific Northwest Seismic Network page for around 2PM Thursday Feb 17, 2011, then made cylinders proportional to the depths (which are given on the PNSN page). Yellow means in past two weeks, blue in past two days, red in past two hours.
And what have we learned? Hmm, good question. Well, it does kind of look like whatever is under there is moving swiftly west and upward.