Earthquake Swarm Could Be ‘Longest Ever Recorded’ at Yellowstone

Tourists walk beside Yellowstone Lake at the West Thumb Geyser Basin in the Yellowstone National Park, Wyoming on June 2, 2011. MARK RALSTON/AFP/Getty Images

The current earthquake swarm around the Yellowstone supervolcano is now the longest ever recorded, according to Newsweek.

The swarm started June 12, and over the past three or so months, around 2,500 earthquakes have been recorded so far—mostly in the western part of the national park.