Just to cheer you all up this morning, many geologists are concerned by a sudden spike of activity at Yellowstone national park. For those of you that don't know, yellowstone park is almost entirely composed of one massive VOLCANO CRATER. Well, it looks like we may be in for another blast. The last blast of this magnitude was around 78000 years ago and almost caused mankind to go extinct, dropping northern hemisphere temperatures almost 21C in the summer. If Yellowstone goes off (which some believe will happen in the next 3-70 years from monitoring it), everything within 3-600 Km of that park will be annihilated. The next 600 Km would be buried under massive layers of ash. Heavy ash would fall as far away as the appalachians and the gulf of mexico. Rocks would fall across the plains. This is bad shit. Imagine a 50 Km vertical column of lava spitting from the rocky mountains ... just thought I'd cheer you up. And for you Euros among us, prepare to freeze your asses off in the next ice age ... I'll be a fossil, so I won't be able to share your pain.
Here are some links:
http://www.solcomhouse.com/yellowstone.htm
http://www.rense.com/general41/yellowstoneupdate.htm
http://zyx.org/TOBA.html
http://amos.indiana.edu/library/scripts/volcanoes.html
Have a nice day!