2001 nisqually earthquake

The 6.8 magnitude earthquake caused billions of dollars in damage. The most recent deep event was a M6.8 earthquake on February 28, 2001, centered under the Nisqually delta. Nisqually Earthquake 2001 earthquake lifted, rotated Washington Capitol building's dome. While the new State Route 99 tunnel in downtown Seattle was the most prolific project to result from the quake, it was certainly not the only one. Watch live footage taken during the earthquake from National Geographic: According to the U.S. Geological Survey, the earthquake was felt hundreds of miles away including in southern British Columbia, central Oregon, and northwestern Montana. Twenty years ago Sunday, a 6.8-magnitude earthquake hit the Puget Sound region. The first phase radiating outward from the hypocenter is the P-wave. The Nisqually earthquake struck at 10:54am on February 28, 2001, 11 miles north of Olympia, Washington. Similar to Figure 1 in SRL article: "Preliminary report on the Mw=6.8 Nisqually, Washington earthquake of 28 February 2001", SRL, V 72, May/June 2001. Bulletin of the Seismological Society of America , v. 99, pp. The ground in the Puget Sound region didn’t just shake during the magnitude 6.8 Nisqually earthquake, it moved — literally. It was more than 35 miles underground, so there are no cracks or evidence in the Nisqually … At 10:54 a.m. on February 28, 2001, a deep earthquake centered near the Nisqually Delta northwest of Olympia startles the entire Puget Sound region and causes more than $1 billion in damage to area buildings and roads. The Pacific Northwest faces nearly as much earthquake risk as California, so preparation is essential for residents in this area. By comparison, the magnitude 6.7 Northridge earthquake in 1994, which occurred at a depth of 11 miles, caused 57 deaths and $20 billion dollars of losses. This was the biggest earthquake in the region since the 6.7 magnitude earthquake in 1965. Some Observations of Geotechnical Aspects of the February 28, 2001, Nisqually Earthquake in Olympia, South Seattle, and Tacoma, Washington; Soil Liquefaction and Ground Failure. Its hypocenter lay 30 miles beneath the Nisqually delta area, approximately 11 Brick buildings in Pioneer Square in Seattle were also heavily impacted including the Cadillac hotel pictured here. The quake originated on a fault that lies more than 35 miles under the Nisqually Delta, giving the earthquake its name. Nisqually Earthquake Mw 6.8 Earthquake in Washington State. This is an animation in map view of the ground motions from the 3D finite-difference simulation of the 2001 M6.8 Nisqually earthquake. Jumpstart recently launched in Oregon and Washington! The magnitude 6.8 Nisqually earthquake in 2001 shook western Washington and beyond, seriously damaged or destroyed some buildings and roads and impacted bridges. Yet it was the costliest natural disaster in Washington State history. Author: Drew Mikkelsen Preliminary Strong Motion Information The number of injuries exceeded 400, but resulted in only one death. On Feb. 28, 2001, a 6.8 magnitude earthquake hit Nisqually, injuring hundreds of people and causing billions of dollars in damage. Waterfront Structures What is ‘the Big One’ Earthquake, When is it Coming? The Nisqually earthquake which struck the Puget Sound area on February 28, 2001, poses the first opportunity to study an earthquake and its aftereffects in the Pacific Northwest using GPS geodesy. 10 of 162 P-I photographer Phil H. Webber captured this image of cracks in the Alaskan Way Viaduct the day of the Feb. 28, 2001 Nisqually earthquake. Additionally seawalls were reconstructed and the emergency operations center in Seattle was moved in 2008 to a building with a higher seismic standard. As much of the damage involved older unreinforced masonry or concrete buildings, many buildings and bridges were retrofitted. The area in Pio Sq which got hit hardest was right where there had been a big riot 9-10 hrs earlier. Many Western Washington residents still remember where they were when the shaking started on Feb. 28, 2001.

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