Pacific Northwest Earthquakes—3 Types (Educational)
The Pacific Northwest is host to more than the anticipated megathrust earthquake that will happen off the Cascadia coast in the future. That earthquake will be due to the stress building between the Juan de Fuca and North American plates as the oceanic Juan de Fuca plate dives deep beneath the Pacific Northwest. However, there are also deep earthquakes within the subducting plate, and shallow earthquakes in the overlying continental crust. This is because of additional forces acting on the region besides subduction-zone processes.
Written and directed by Dr. Robert Butler, University of Portland, OR
Animation and graphics by Jenda Johnson, Earth Sciences Animated
Narrated by Roger Groom, teacher, Mount Tabor Middle School Portland OR
Science advisor: Dr. Ray Wells, U.S.Geological Survey
Reviewed by: Dr. Rob Witter, U.S. Geological Survey
Видео Pacific Northwest Earthquakes—3 Types (Educational) канала IRIS Earthquake Science
Written and directed by Dr. Robert Butler, University of Portland, OR
Animation and graphics by Jenda Johnson, Earth Sciences Animated
Narrated by Roger Groom, teacher, Mount Tabor Middle School Portland OR
Science advisor: Dr. Ray Wells, U.S.Geological Survey
Reviewed by: Dr. Rob Witter, U.S. Geological Survey
Видео Pacific Northwest Earthquakes—3 Types (Educational) канала IRIS Earthquake Science
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