Search results
Results from the WOW.Com Content Network
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 from mid-Vancouver Island, south along the Pacific Northwest coast as far as northern California.
A map of the Juan de Fuca plate with noted seismic incidents, including the 2001 Nisqually earthquake. The Juan de Fuca plate is bounded on the south by the Blanco fracture zone (running northwest off the coast of Oregon), on the north by the Nootka Fault (running southwest off Nootka Island, near Vancouver Island, British Columbia) and along the west by the Pacific plate (which covers most of ...
It separates the Juan de Fuca and North America plates. New Juan de Fuca plate is created offshore along the Juan de Fuca Ridge. [8] [9] The Juan de Fuca plate moves toward, and eventually is pushed under the continent (North American plate). The zone separates the Juan de Fuca plate, Explorer plate, Gorda plate, and North American plate.
An earthquake ruptured off California on Thursday morning, briefly triggering a tsunami warning for the coast of Northern California and southern Oregon.
The Juan de Fuca Ridge is a mid-ocean spreading center and divergent plate boundary located off the coast of the Pacific Northwest region of North America, named after Juan de Fuca. The ridge separates the Pacific Plate to the west and the Juan de Fuca Plate to the east. It runs generally northward, with a length of approximately 500 kilometres ...
The Puget Sound area is prone to deep earthquakes due to the Juan de Fuca tectonic plate's subduction under the North American plate at 3.5 to 4.5 cm a year [6] as part of the Cascadia subduction zone.
The Juan de Fuca plate, created at the spreading ridge southwest of the triple junction, is moving at a rate of 45.7 mm/yr at an azimuth of 244˚ in relation to the North American plate, and the Pacific plate is moving at 58.6 mm/yr in relation to the Juan de Fuca plate. [2]
The Juan de Fuca and Gorda plates are moving east-northeast, subducting under the North American plate at a much slower rate of 2.5 to 3 cm per year. [6] Because the ridge is divided into three distinct parts, each section has its own spreading rate, caused by the slab-pull and ridge-push of the surrounding tectonic plates .