This video describes Seattle's true earthquake dangers and what you can do to stay safe. The Seattle Fault, a zone of east-west thrust faults under the Puget Sound and Seattle, last ruptured in a magnitude-7.0 to -7.5 earthquake about 1,100 years ago. Data. The zone is shown within the two dashed lines in Figure 1.1. and is composed of four south dipping thrust faults (Johnson et al., 1994). Earthquake experts say current building codes don’t reflect the Seattle area’s riskiest features — but the outlook could improve if the Really Big One can wait.

See the city of Seattle's earthquake hazards map. Interactive fault map and comprehensive geologically based information on known or suspected active faults and folds in the United States. The Puget Sound has the potential to experience three different types of earthquakes: shallow, deep and subduction. Base map. Latest earthquakes map and list (past 24 hours, M2.5+) from the ANSS (Advanced National Seismic System). More particularly, the concentration of seismicity under Puget Sound south of the Seattle Fault is attributed to uplift of that block, bounded by the Seattle, Tacoma, and Dewatto faults on the north, south, and west (the eastern boundary is not determined), creating the Seattle Uplift. Highlighted in dark red, the Interbay area between Magnolia and Queen Anne along with northern Montlake and the University Village area are now considered at high risk for strong ground shaking in a quake. Larger crustal faults, such as the Seattle fault and southern Whidbey Island fault zone, can produce earthquakes up to magnitude 7.5. Sandi Doughton. It is roughly estimated to have a 1 in 5000 chance of occurring each year. Launch Streetview. Earthquakes on faults like these may cause tsunamis in the Puget Sound region. Tap/click on "gear icon" for options and settings.

This map is useful in showing the location and approximate length of faults but does not provide the impact an earthquake from a fault could have on the area surrounding. Clicking on a county will display links to the published maps and reports. The Seattle Fault, a zone of east-west thrust faults under the Puget Sound and Seattle, last ruptured in a magnitude-7.0 to -7.5 earthquake about 1,100 years ago. o The Seattle Fault Zone extends east-west through the middle of the city. A new analysis of the Seattle area’s risk during a major earthquake has found new locations at higher potential for violent shaking. Earthquakes on shallow faults typically last 20 to 60 seconds and the shaking is localized to the general area of the fault. Depending on how deep an earthquake is and the type of fault it takes place on, earthquakes can be minor or major, close to the surface or deep within the earth. An earthquake on the Seattle Fault poses the greatest risk to Seattle. Tap/click on "gear icon" for options and settings. The worst tsunami for Seattle would be triggered by a Seattle Fault earthquake. 2014 Green Bay at Seattle; 2014 Carolina at Seattle; NetQuakes Data; Earthquake Impacts; Seattle SoundersFC. The zone is shown within the two dashed lines in Figure 1.1. and is composed of four south dipping thrust faults (Johnson et al., 1994). Produced for the Web by Gil Aegerter . Latest earthquakes map and list (past 24 hours, M2.5+) from the ANSS (Advanced National Seismic System). It is based on over a dozen government reports and it debunks common misconceptions about the … The Seattle Fault runs through Puget Sound, through West Seattle, Sodo, Beacon Hill and then across to Bellevue.

July 12, 2019 at 5:57 pm Updated July 13, 2019 at 11:38 am . 2018 Long-term National Seismic Hazard Map. By .