Sub Layers:

• Cascadia M9.0 Estimated Tsunami Arrival Times
• Cascadia M9.0 Hazard Areas
• Cascadia 1700 Hazard Areas
• Cascadia 1700 With Asperity Hazard Areas
• Seattle Fault M7.5 Estimated Tsunami Arrival Times
• Seattle Fault M7.5 Hazard Areas
• Tacoma Fault M7.3 Hazard Areas
• Tacoma Fault Rosedale M7.3 Hazard Areas

Name: Tsunami Scenario Catalog

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Type: Group Layer

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Description: This catalog contains tsunami inundation models from several deterministic earthquake scenarios. The location and magnitude of the source earthquake determines the extent and size of the modeled tsunami. The tsunami scenario models are generated from several different scenario earthquakes along the Cascadia subduction zone and other local crustal faults. Cascadia M9.0 Estimated Tsunami Arrival Times: These points provide information about how long it will take for the first tsunami wave from a Cascadia M9.0 earthquake scenario to reach a given location, as well as the amplitude of that wave. Cascadia M9.0 Hazard Areas: Modeled after a simulated 9.0 magnitude earthquake along the Cascadia subduction zone using the L1 splay fault model. Cascadia 1700 Hazard Areas: Modeled after a simulated 9.1 magnitude earthquake, based on the ~A.D. 1700 event along the Cascadia subduction zone. Cascadia 1700 With Asperity Hazard Areas: Modeled after a simulated 9.1 magnitude earthquake, based on the ~A.D. 1700 event along the Cascadia subduction zone. This scenario adds an extra 20 ft of uplift as compared to scenario 1A. Seattle Fault M7.5 Estimated Tsunami Arrival Times: These points provide information about how long it will take for the first tsunami wave from a Seattle Fault M7.5 earthquake scenario to reach a given location, as well as the amplitude of that wave. Seattle Fault M7.5 Hazard Areas: Modeled after a simulated ~7.5 magnitude earthquake on the Seattle Fault, similar to that of the 923 CE event. Tacoma Fault M7.3 Hazard Areas: Modeled after a simulated ~7.3 magnitude earthquake on the Tacoma Fault. Tacoma Fault-Rosedale M7.3 Hazard Areas: Modeled after a simulated ~7.3 magnitude earthquake on the Tacoma Fault using the Rosedale monocline as the dominant slip face.

Service Item Id: 6b7921fe418e41059402bf9bbdcd1bc2

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