A magnitude 3.9 earthquake was measured near Norris Geyser Basin in Yellowstone National Park on Tuesday evening. It's the ...

Yellowstone Caldera Chronicles is ... discharge and geyser eruption patterns to the Aug. 17, 1959, M7.3 Hebgen Lake, Montana, earthquake, which had an epicenter about 48 kilometers (30 miles ...

Ranger naturalist George D. Marler monitoring of changes in hydrothermal activity in Yellowstone was useful in understanding the changes in hydrothermal activity following the August 1959 M7.3 Hebgen ...