A FEW WEEKS back, we heard news of an small earthquake swarm underneath Mount St. Helens. Now, media-driven hyperbole aside, that swarm was business-as-usual for aCascade volcano, where magma slowly rises back into the upper parts of the system. So, it should be no surprise when other volcanoes in the range show similar behavior. That’s what we might be seeing right now at St. Helens’ southern neighbor, Oregon’s Mt. Hood, where the USGS has noticed a swarm of small earthquakes (all less than M2) that started on Sunday.
Read More: http://www.wired.com/2016/05/new-earthquake-swarm-rocking-mt-hood
Read More: http://www.wired.com/2016/05/new-earthquake-swarm-rocking-mt-hood
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