Where is Cascadia?
Known as the Cascadia subduction zone, it runs for seven hundred miles off the coast of the Pacific Northwest, beginning near Cape Mendocino, California, continuing along Oregon and Washington, and terminating around Vancouver Island, Canada.
What is unusual about Cascadia from the perspective of earthquake activity?
The CSZ may be unique among the world’s subduction zones in that it produces very few (if any) earthquakes unambiguously on the plate interface. Coupled with evident occurrence of great megathrust earthquakes, the CSZ must be much more strongly locked than other subduction faults.
What is the meaning of Cascadia?
land of
Further, Cascadia is a word euphonious and round with a sound-ending “ia”—meaning “land of…”, a pleasing parallel to California, Columbia, and so on.
What is the Cascadia bioregion?
The Cascadia Bioregion is also referred to as the Pacific Northwest Bioregion and encompasses all of the state of Washington, and portions of Oregon, Idaho, California, Nevada, Wyoming, Montana, Alaska, Yukon, and British Columbia. Bioregions are geographically based areas defined by land or soil composition, watershed, climate, flora, and fauna.
Cascadia (bioregion) The area from Vancouver, B.C. down to Portland, Oregon has been termed a megaregion by the U.S. and Canadian governments, especially along the ‘Cascadian Corridor’. Megaregions are defined as areas where “boundaries begin to blur, creating a new scale of geography now known as the megaregion.
Where are the proposed Cascadian boundaries?
McCloskey is the source of the proposed Cascadian boundaries that include the complete watershed of the Columbia River, including the territories of what is now Idaho, western Montana, and smaller parts of Wyoming, Utah, and northern Nevada.
How did the Cascades get its name?
The term “Cascades” was first used for the Cascades Rapids, as early as the Astor Expedition. The earliest attested use of the term for the mountain range dates to 1825, in the writings of botanist David Douglas. During geological explorations in the early 1900s the term was first applied to the region.