What would happen if America's dormant supervolcano erupted one day? <br /><br />Taken from the show "FirstScience presnets: Supervolcanoes" available at FirstScience.tv <br /><br />Download in full at: <a class="link" rel="nofollow" href="http://firstscience.tv/supervolcanoes.htm">http://firstscience.tv/supervolcanoes.htm</a>
