“The western part of the Yellowstone caldera is waning,” said Ninfa Bennington, a volcano geophysicist with the U.S. Geological Survey and lead author on a paper in Wednesday’s edition of ...

"When we used magnetotellurics, we were able to see, actually, there’s not a lot there," said Ninfa Bennington, lead author on the study and a research geophysicist at the Hawaiian Volcano Observatory ...