2006-08-21 15:06:33 · 5 answers · asked by tiffany s 1 in Science & Mathematics ➔ Earth Sciences & Geology
Well, I would say that Yellowstone is the closest geologic activity that's volcanic but it's technically considered a super-volcano (i.e. doesn't form a mountain or cone shape and generally only erupts every several thousand years). Scientists have discovered a caldera (magma chamber) under Yellowstone with the not-so-cunning use of seismometers. So sit back and wait for that thing to erupt...it won't matter where you are in the US as long as you're east of it...you'll know when it happens.
2006-08-22 00:24:44 · answer #1 · answered by chinoszone 1 · 0⤊ 0⤋
Not exactly a volcano, but the Crater of Diamonds State Park in Arkansas (near Murfreesboro) is an ancient volcanic "pipe" that has diamonds- although very, very few are of significant size or quality.
Plus, it's not far at all from Missouri.
See also the references given below for more information.
2006-08-21 22:51:52 · answer #2 · answered by Anonymous · 0⤊ 0⤋
While there are no active volcanoes in the Midwest, there are some great anciet volcanic rocks down in the St.Francis Mountains there in Missouri. Some are over 1 billion years old!!
2006-08-21 22:18:50 · answer #3 · answered by Flighy 2 · 0⤊ 0⤋
The closest active volcano is probably Yellowstone National Park in NorthWest Wyoming. You can see sulfur vents, hot springs, and guisers there, all caused by geothermal heat from hot magma fairly near to the surface.
2006-08-21 22:31:11 · answer #4 · answered by Sciencenut 7 · 0⤊ 0⤋
Bear Butte, South Dakota
2006-08-21 22:29:41 · answer #5 · answered by Jill 1 · 0⤊ 0⤋