caldera

  1. G

    Is the yellowstone caldera safe?

    Not long after Yellowstone Park was officially created, a small group of campers were killed by Nez Perce Indians on the run from US troops1. More recently, the last time I was in the area, a ranger was killed by a Grizzly Bear (so was his horse) on the edge of the park. A quick glance at my...
  2. G

    Geology on an epic scale: the Yellowstone caldera

    ...The park encompasses the giant caldera of a hotspot-fuelled 'supervolcano' that last exploded 630,000 years ago, and is famous as the place to see geysers, hot springs and other hydrothermal activity, all powered by that same hotspot. ...An Epic Post, you must read. More...
  3. K

    What would make bell-like ringing sounds within water of submerged caldera?

    What might this signify? There has been no activity for 4,000 years.
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