Over the past three months, there have been over 400 reported earthquakes at Mount St. Helens, but researchers at the Cascade Volcano Observatory said Wednesday the elevated seismic activity is still in line with previous periods. The Pacific Northwest Seismic Network measured hundreds of earthquakes at the volcano since July 15. There were about 40-50 earthquakes per week in late August to early September. For comparison, researchers said there were about 11 earthquakes at the site per month since 2008. Read more here: https://www.king5.com/article/tech/science/over-400-earthquakes-mount-st-helens/281-3c06ba91-6768-47e8-bd1f-0d843c267f03