This is the largest earthquake in Western Montana in the past 20 years, said USGS geophysicist Robert Sanders. USGS A map of the shaking intensity felt by people living in Montana, as reported to the U.S. Geological Survey's "Did You Feel It?" The strongest shaking was recorded at intensity level 8 closest to the epicenter, which people reported as "severe shaking." The strongest shaking was recorded at intensity level 8 closest to the epicenter, which people reported as "severe shaking." Thursday’s Montana earthquake is unrelated to an ongoing earthquake swarm northwest of Yellowstone Lake, Sanders said.

Source: Los Angeles Times July 06, 2017 07:22 UTC