Open-File Report O-24-11, Improved Cascadia Earthquake Source Models …
The accompanying O-24-11_model_data.zip file contains a comprehensive update and refinement of tsunami source scenarios for the Cascadia subduction zone, incorporating a suite of 3,502 models developed by integrating new CASIE21 seismic imaging data, updated geological interpretations, and advanced modeling techniques.
New tsunami modeling using a large earthquake scenario along the Cascadia subduction zone is now available for all areas within the Puget Sound and parts of the Strait of Georgia, some of which had not been modeled before. This modeling uses a simulated magnitude 9.0 earthquake that produces a tsunami that is unlikely to be exceeded
NOAA Center for Tsunami Research - Simulated Tsunami Event - Cascadia …
The graphics display research model results, showing qualitative and quantitative information about the tsunami, including tsunami wave interaction with ocean floor bathymetric features, and neighboring coastlines. Tsunami model amplitude information is shown color …
3D Viscoelastic Models of Slip‐Deficit Rate Along the Cascadia ...
21 小时之前 · This includes the Cascadia subduction zone in the Pacific Northwest of the United States, which is capable of Magnitude 8 to 9 earthquakes every few hundred years. The active deformation of Earth's crust in the Western US is often interpreted with models of a cold, elastic lithosphere underlain by hotter, ductile rock.
Tsunami Hazard Maps - Pacific Northwest Seismic Network
These maps also provide a bases for land use planners in communities to reduce risk by locating critical facilities including schools, out of the potential tsunami flood plain. The first comprehensive inundation mapping in the Cascadia Region began in the Cascadia Region after the creation of the Natonal Tsunami Hazard Mitigation Program (NTHMP).
Numerical Models - Cascadia Region Earthquake Science Center
The Dynamic Rupture, Earthquake Cycle, and Tsunamis (DET) group is developing models (computer simulations) of earthquakes and tsunamis in Cascadia. The models account for tectonic loading over hundreds of years, slow slip events, and megathrust ruptures.
Time-dependent probabilistic tsunami risk assessment ... - Nature
2024年5月7日 · Tidal level effects are examined by considering different baseline sea levels. The model is applied to Tofino, British Columbia, Canada within the Cascadia subduction zone. High-resolution...
Simulation of Tsunamis from Great Earthquakes on the Cascadia ...
1990年11月30日 · Large earthquakes occur episodically in the Cascadia subduction zone. A numerical model has been used to simulate and assess the hazards of a tsunami generated by a hypothetical earthquake of magnitude 8.5 associated with rupture of the northern sections of the subduction zone.
Relative Tsunami Hazard From Segments of Cascadia Subduction Zone …
2021年8月12日 · Simulations of Mw 7.5–9.2 earthquake constrained by earthquake rupture physics and geodetic locking models show that Mw ≥ 8.5 events initiating in the middle segments of the subduction zone can create coastal tsunami amplitudes comparable to those from the largest expected event.
Toward Near‐Field Tsunami Forecasting Along the Cascadia Subduction ...
2020年8月6日 · With a goal of forecasting the presence of a tsunami of at least 1 m along regional coastlines, the GFAST model succeeded over 80% of the time: 27% of the coastline correctly forecasted a tsunami of at least 1 m and another 60% of cases correctly forecast that the tsunami would not reach 1 m.