Ominous Earthquake Swarm At Yellowstone Supervolcano Now One Of Longest Ever Recorded

The rumblings beneath the formerly dormant supervolcano known as the Yellowstone caldera just won't quit. And the ongoing earthquake swarm at the Yellowstone National Park supervolcano is now one of the longest ever recorded, having started on June 12.
Over the past three and a half months, almost 2,500 earthquakes have been recorded in the western part of the national park. This is on par with the biggest swarm ever recorded, where more than 3,000 earthquakes took place over three months, Newsweek reports.