Field trip!

Photo: Dan Dzurisin, USGS Cascades Vocano Observatory.

Today, class, we’re going to take a little trip to Mount St. Helens, which is erupting …. albeit verrrrrry, verrrrrrrrrry slooooooooooooowlyyyyyyyyy.

It’s nothing like the 1980 eruption, but what’s going on at Mt. St. Helens these days is astounding in its own right. A fin-like slab of rock is rising from the dome, growing 4 to 5 feet per day. You can’t climb Mt. St. Helens, but apparently there’s a great view from the Johnston Ridge Observatory, which is now open for the season.

Mount St. Helens National Volcanic Munument (Forest Service).
NASA feature (large image & lots of links).
CNN article (with image gallery).

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