<story><title>A Surprise from the Supervolcano Under Yellowstone</title><url>https://nytimes.com/2017/10/10/science/yellowstone-volcano-eruption.html</url></story><parent_chain></parent_chain><comment><author>njarboe</author><text>Caldera collapse volcanic eruptions the size of Yellowstone occurr at random intervals, not periodically every 100,000 years, as the article states. The last big one was the Toba eruption in Indonesia about 72,000 years ago. That one almost killed off the human race.&lt;p&gt;The Long Valley Caldera in California became more active in the 1970&amp;#x27;s. If this study&amp;#x27;s conclusions hold up under investigation and it only takes a few decades of activity before a &amp;quot;supervolcano&amp;quot; can erupt, we should monitor these caldera a bit more closely.</text></comment>
<story><title>A Surprise from the Supervolcano Under Yellowstone</title><url>https://nytimes.com/2017/10/10/science/yellowstone-volcano-eruption.html</url></story><parent_chain></parent_chain><comment><author>mikeytown2</author><text>Summary: super volcanoes can go from dormant to erupting in a human lifetime; previous estimates were it took much longer.</text></comment>