A magnitude 4.2 earthquake struck about 7.5 miles NNE of Malmstrom Air Force Base in Montana, according to the USGS.
A light, 4.2-magnitude earthquake struck in Montana on Thursday, according to the United States Geological Survey. The ...
Particulate matter (PM10), a key indicator of air pollution, exceeded the ministry’s annual average limit of 40 micrograms per cubic meter by wide margins.