Tag Archives: the 1959 yellowstone earthquake

The massive 7.2-magnitude Hebgen Lake earthquake on August 17, 1959 is still affecting the Yellowstone National Park region, according to a team of geophysicists at the University of Utah, who say a swarm of up to 3,000 events near Maple Creek from June 2017 to June 2018 is tied to that event.

The 1959 Yellowstone Earthquake, all 40 seconds of it, was a defining moment in Yellowstone National Park’s history.