Dan Dzurisin

Dan Dzurisin

The ups and downs of being a volcano

By: - August 24, 2021

The ground surface at Yellowstone goes up and down.  Since 2015, the caldera has been going down at a rate of about 2 to 3 centimeters—about 1 inch—per year, but during 2004 –2010 the caldera uplifted at a similar rate. What causes these ups and downs? Well…it’s complicated. Interpreting ground deformation at Yellowstone and other volcanoes might […]

Yellowstone’s volcanic giants hiding in plain sight

By: - April 13, 2021

While geysers and hot springs are relatively easy to find in Yellowstone, what about the caldera, and the lava flows and the two massive resurgent domes that formed after the caldera erupted?  They’re there.  You just need to know where to look. Its physical grandeur and charismatic wildlife notwithstanding, Yellowstone can be frustrating to visitors interested in exploring […]