Southwest Volcano Threat Overlooked
When you buy through links on our web site , we may earn an affiliate commission . Here ’s how it works . More than 1,400 volcanoes dot the Southwestern United States . At least three erupt in the past 1,000 geezerhood , which is much yesterday in geologic time . expert and tragedy officials are finally looking at the potential threats . Though many of the region ’s volcanoes lie in outback box , puncturing rainbow - hued rocks and surround by empty desert , some run smack up against growing westerly cities ....