This Washington volcano just recorded its 'largest' earthquake swarm since 2009

Scientists have recorded the "largest" earthquake swarm at Mount Rainier in Washington state since 2009, the U.S. Geological Survey reported. The swarm at the second-most seismically active volcano in the northern Cascade Range started at 1:29 a.m. PT on July 8, the USGS reported in an X post. "Hundreds" of small quakes – the largest being a magnitude 1.7 — had been recorded as of 9 a.m. July 8, the USGS said, citing Pacific Northwest Seismic Network data. An exact cause of the swarms wasn't immediately reported, but the USGS...