Cascade Range Weekly Update issued Sep 12, 2014 11:20 Volcano Alert Level NORMAL - Aviation Color Code GREEN

Activity Update: All volcanoes in the Cascade Range of Oregon and Washington are at normal levels of background seismicity. These include Mount Baker, Glacier Peak, Mount Rainier, Mount St. Helens, and Mount Adams in Washington State; and Mount Hood, Mount Jefferson, Three Sisters, Newberry, and Crater Lake in Oregon.

Recent Observations: Beginning on 09/04, a swarm of small earthquakes occurred just west of and 5-6 km south of the Mount Hood summit. The largest event (magnitude 2.6) occurred on 09/04 as reported last week. Seismic activity has declined significantly over the past few …

Source: Volcanoes

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