Posted March 11, 2011
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Volcanoes are a bit more complex, but with modern imaging techniques and the historical record, we are due for at least one of about a half dozen different volcanoes blowing its top. Mt. St. Helens is the only one that's actually blown it's top in recent memory, but most of the others are active as well.
When scientists say volcanoes are due for eruptions, they're talking along the geologic timeline. Meaning it could happen tomorrow like sensationalists would have you believe, or it could happen in 400 years, or it could happen in 2,000 years (or in cases like Yellowstone, any day in the next 90,000 or whatever years). That's not really predicting, and no scientific body (like the USGS) would go by it. You might see Mt. Baker or even Ranier go boom boom in your lifetime; it's impossible to know until it goes into overdrive as much as a week or more beforehand (likely less), at which point you're past the time to make predictions.