http://www.volcano.si.edu/reports/usgs/It has been my observation that volcanic activity preceedes many large earth quake events, such as the eruptions in hawaii prior to the 9.0 Japan quake. The dome of the Yellowstone volcano has shown growth recently and an eruption there would cause great damage to the us due to ash fallout bringing disruption and failure to the US food chain among other things.
http://volcanoes.usgs.gov/yvo/activity/____________________________
Is the world's largest super-volcano set to erupt for the first time in 600,000 years, wiping out two-thirds of the U.S.?
By Daniel Bates
Last updated at 12:16 PM on 25th January 2011
The super-volcano beneath Yellowstone National Park in Wyoming has been rising at a record rate since 2004
It would explode with a force a thousand times more powerful than the Mount St Helens eruption in 1980.
Spewing lava far into the sky, a cloud of plant-killing ash would fan out and dump a layer 10ft deep up to 1,000 miles away.
Two-thirds of the U.S. could become uninhabitable as toxic air sweeps through it, grounding thousands of flights and forcing millions to leave their homes. ............ follow links.
http://www.dailymail.co.uk/sciencetech/article-1350123/Worlds-largest-volcano-Yellowstone-National-Park-wipe-thirds-US.html#ixzz1BzrK6rGP_________________________________________
http://www.lampholderpub.com/Volcano%2CYellowstoneWatch_new_page_65.htmScroll down to Yellowstone Watch section for more links
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Not much we can do about this should it happen except be ready to move out fast.