article_snippet.sent: And the scientists are no signs of an imminent eruption.
article_snippet.sent: An eruption in the next few thousand years is extremely unlikely, the USGS says.
article_snippet.sent: the scientists put the yearly chance at 1 in 700,000 -- about the odds that you will be struck by lightning.
article_snippet.sent: But when it does blow, it probably will change the world.
article_snippet.sent: Mount Pinatubo, which exploded in the Philippines in 1991, doesn't begin to scratch the surface of Yellowstone's roar.
article_snippet.sent: Nor did Krakatoa in 1883, which killed thousands, and the final explosion of which reportedly ruptured the eardrums of people 40 miles away.
article_snippet.sent: The last lava flow was some 70,000 years ago, USGS says.
article_snippet.sent: Calbuco volcano erupts for first time in more than 40 years .