Cascadia subduction zone
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The Cascadia subduction zone is a 620-mile long convergent plate boundary, about 70–100 miles off the Pacific coast of North America, that stretches from northern Vancouver Island in Canada to Norther
Stumps of trees at the Neskowin Ghost Forest
Large tree stump protruding from beach sand
Structure of the Cascadia subduction zone
Juan de Fuca triple junctions and the Cascade Volcanic Arc
1700 Cascadia earthquake
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The 1700 Cascadia earthquake occurred along the Cascadia subduction zone on January 26, 1700, with an estimated moment magnitude of 8.7–9.2. The megathrust earthquake involved the Juan de Fuca plate f
Cascadia subduction zone
…Vancouver and Victoria, British Columbia; Seattle and Tacoma, Washington; and Portland, Oregon. There are no contemporaneous written records of the 1700 Cascadia earthquake. Orally transmitted legends from the Olympic Peninsula area tell of an epic battle between a thunderbird and a whale. In 2005, seismologist Ruth Ludwin…
Sandsheet thought to have resulted from the tsunami caused by the 1700 earthquake, exposed on the bank of the Salmon River, Oregon
A scenario of a magnitude 9.0 earthquake on the Cascadia subduction zone by the United States Geological Survey.