Worldwide Volcano earthquakes and Volcano earthquake notifications - USA / Oregon

Last update: July 4, 2012 at 3:33 pm by By

Oregon - Mount Hood - latest activity : 1934 Mount Hood, Oregon's highest peak, forms a prominent backdrop to the state's largest city, Portland. The eroded summit area of Mount Hood consists of several andesitic or dacitic lava domes. Major Pleistocene edifice collapse produced a debris avalanche … [Read more...]