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May 8, 2023 at 5:00 AM. As temperatures slowly rise across Washington state, tourism to oceanfront spots will continue to increase, too. But visitors to the Evergreen State’s Pacific Ocean coast ...
A fault off the Pacific coast could devastate Washington, Oregon and Northern California with a major earthquake and tsunami. Researchers mapped it comprehensively for the first time.
October 18, 2024 at 2:06 PM. Multiple earthquakes of magnitude 3.0 and higher struck off the west coast in the Pacific Ocean in the early morning hours of Friday, Oct. 18., according to the ...
The Cascadia subduction zone is a 960 km (600 mi) fault at a convergent plate boundary, about 100–200 km (70–100 mi) off the Pacific coast, that stretches from northern Vancouver Island in Canada to Northern California in the United States. It is capable of producing 9.0+ magnitude earthquakes and tsunamis that could reach 30 m (98 ft).
These reports looked at the timing of abrupt uplift and subsidence around Restoration Point and Alki Point (distant right side of picture), [2] tsunami deposits on Puget Sound, [3] turbidity in lake paleosediments, [4] rock avalanches, [5] and multiple landslides around Lake Washington, [6] and determined that all these happened about 1,100 ...
The Tacoma Fault Zone marks the south end of the Seattle Uplift, of which the similar and related Seattle Fault Zone marks the north end. This uplift is believed to be either a slab of rock about 15 km thick being pushed up a ramp, or a wedge being popped up between these two faults, by tectonic forces from the south or south-west as tectonic plates riding on top of the Juan de Fuca plate are ...
The Puget Sound faults under the heavily populated Puget Sound region (Puget Lowland) of Washington state form a regional complex of interrelated seismogenic (earthquake-causing) geologic faults. These include (from north to south, see map) the: Devils Mountain Fault; Strawberry Point and Utsalady Point faults; Southern Whidbey Island Fault (SWIF)
These centers alert local authorities when residents may need to evacuate vulnerable areas. At 6:09 a.m. on Jan. 15, the National Weather Service issued a tsunami advisory for the entire West ...