[coloradan]

It is apparently common for volcanoes to follow major earthquakes (measured in years to decades) and there have been magnitude 9ish quakes near Japan, Sumatra and Chile within the past 20 years. If the Cascadia fault slips and gives a 9 to the Washington-Oregon area, one would expect Mts. Hood, Shasta and/or St. Helens to blow again, too.

[goodnesswins]

You forgot MT. Rainer...

[chopperman]

Since volcanoes follow earthquakes, then they must cause earthquakes. Isn’t that the reasoning that’s been accepted by the global warming cult?

[alloysteel]

Of course, the magnitude of this many volcanoes erupting at the same time would have NOTHING whatsoever to do with the amount of previously sequestered carbon dioxide being belched out into the atmosphere.

Mankind’s contribution to atmospheric carbon dioxide pales into insignificance in comparison to this massive emission from the bowels of the earth itself.

Still, the plant life just gobbles it up very nearly as fast as it is being produced.

[ScottinVA]

I lived a few years in the extended shadow of Mt. Shasta. She sits like a queen on a throne overlooking the entire northern Sacramento Valley. For those familiar with the I-5 route coming from Sacramento north, her tip can be seen on a clear day as far south as Dunnigan, about 180 miles away. If this old girl cuts loose on the scale of Mt. St. Helens, northern CA is in for an interesting ride.

[Steve_Seattle]

It's been about 15 years since we had a major earthquake in the Seattle area, so we are overdue even for a moderately-severe quake. (I define "major" as anything above 5.0, which is a quake everyone can feel and which is the lower threshold of when you begin to see damage to buildings.)

Anything above 6.0 here would be a big problem, and our two major sports stadiums are in a very vulnerable area.

If Mt. Rainier had a sudden, major event, it could unleash a mudslide (there's a more technical term, which I can't remember) that would reach all the way to Seattle and probably kill thousands in the Kent/Auburn valley.

[Smokin' Joe]

It is apparently common for volcanoes to follow major earthquakes (measured in years to decades) and there have been magnitude 9ish quakes near Japan, Sumatra and Chile within the past 20 years. If the Cascadia fault slips and gives a 9 to the Washington-Oregon area, one would expect Mts. Hood, Shasta and/or St. Helens to blow again, too.

Both earthquakes and volcanic activity are indications of movement along plate margins. Maybe continental drift is picking up a little.