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A small earthquake might feel like a sharp jolt or last a few seconds, he said. ... The post-Big One tsunami would take hours to work its way into Puget Sound, Bodin said. Tacoma is a bit ...
Damaging earthquakes are well known in the Pacific Northwest, including several larger than magnitude 7, most notably the M9 1700 Cascadia earthquake and the M7.0–7.3 earthquake in about 900AD on the Seattle Fault. The M6.5 1965 Puget Sound earthquake shook the Seattle, Washington, area, causing substantial damage and seven deaths. This event ...
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 prospect of a major earthquake on the Doty Fault poses a serious hazard to the entire Puget Sound region as it threatens vital economic lifelines: At Chehalis there is but a single freeway (Interstate 5) and a single rail line connecting the Puget Sound region with the rest of the west coast; the only alternate routes are very lengthy.
The chances for a 6.0 magnitude or greater earthquake to occur along the Seattle Fault within the next 30 years is 80-85%, according to one seismologist.
The 1949 Olympia earthquake was a damaging magnitude 6.7 intraslab earthquake that occurred at 52 km depth and caused eight deaths. Another notable intraslab earthquake in the Puget Sound region was the magnitude 6.8 2001 Nisqually earthquake. Intraslab earthquakes in Cascadia occur in areas where the subducting plate has high curvature. [13]
Scenario for a Magnitude 6.7 Earthquake on the Seattle Fault Vivid and comprehensive. Washington State's Bridge Seismic Retrofit Program; Earthquake Study: Four Vashon-Specific Scenarios Considerations for all islands. Puget Sound Tsunami Inundation Modeling (NOAA) Elliott Bay inundation map (DNR) Tsunami Hazard Map of the Elliott Bay Area (NOAA)
Latest weather forecast calls for a light-and-sound show around the Puget Sound region. Craig Sailor. June 14, 2024 at 8:30 AM ... The National Weather Service ...