max-flow-depth: Raster image depicting maximum composite flow depths over dry land. For each grid point, the pixel value provides the modeled depth of water (in meters) over previously dry land, representing the maximum depth value of all calculated tsunami scenarios. max-inundation: Estimated, "maximum credible scenario" inundation line(s) that encompasses the maximum extent of flooding based on model simulation of all credible source scenarios and historical observations. The maximum credible scenario inundation lines are intended to be utilized as a basis for local tsunami hazard planning and development of evacuation maps. scenario-01: Mw 9.2 earthquake near Kodiak Island; 20 km depth scenario-02: Mw 9.0 earthquake near Kodiak Island; 30 km depth scenario-03: Mw 9.3 earthquake near Kodiak Island; 20-30 km depth scenario-04: Mw 9.27 earthquake near Kodiak Island; 20-30 km depth, slip skewness parameter = 0.2 scenario-05: Mw 9.18 earthquake near Kodiak Island; 20-30 km depth, slip skewness parameter = 0.7 scenario-06: Mw 9.3 earthquake near Kodiak Island; 10 km depth, slip extending to 0 km depth scenario-07: Mw 9.3 earthquake with 35 m of maximum slip across the majority of the rupture scenario-08: Mw 9.3 earthquake with 50 m of maximum slip in the shallow part of the rupture scenario-09: Mw 9.1 earthquake in the Cascadia subduction zone
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This report was funded by the U.S. Department of Commerce/National Oceanic and Atmospheric Administration (NOAA) through National Tsunami Hazard Mitigation Program Awards NA20NWS4670057 and NA21NWS4670003 to the Alaska Division of Homeland Security & Emergency Management in partnership with the Alaska Earthquake Center and the Alaska Division of Geological & Geophysical Surveys. This does not constitute an endorsement by NOAA. Numerical calculations for this work were supported by High-Performance Computing (HPC) resources at the Research Computing Systems unit at the Geophysical Institute, University of Alaska Fairbanks. We thank our reviewers, Corina Allen and one anonymous reviewer, for insightful comments and suggestions that improved the report.
DGGS manages the DNR portion of the federally funded National Tsunami Hazard Mitigation Program (NTHMP). The program identifies at-risk coastal Alaska communities and provides tsunami hazard maps for hazard mitigation and emergency response training.
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Are there legal restrictions on access or use of the data?Access_Constraints:
This report, map, and/or dataset is available directly from the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys (see contact information below).Use_Constraints:This dataset includes results of numerical modeling of earthquake-generated tsunami waves for a specific community. Modeling was completed using the best information and tsunami modeling software available at the time of analysis. They are numerical solutions and, while they are believed to be accurate, their ultimate accuracy during an actual tsunami will depend on the specifics of earth deformations, on-land construction, tide level, and other parameters at the time of the tsunami. Actual areas of inundation may differ from areas shown in this dataset. Landslide tsunami sources may not be included in the modeling due to unknown potential impact of such events on a given community; please refer to accompanying report for more information on tsunami sources used for this study. The limits of inundation shown should only be used as a general guideline for emergency planning and response action in the event of a major tsunamigenic earthquake. These results are not intended for any other use, including land-use regulation or actuarial purposes. Any hard copies or published datasets utilizing these datasets shall clearly indicate their source. If the user has modified the data in any way, the user is obligated to describe the types of modifications the user has made. The user specifically agrees not to misrepresent these datasets, nor to imply that changes made by the user were approved by the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys. The State of Alaska makes no express or implied warranties (including warranties for merchantability and fitness) with respect to the character, functions, or capabilities of the electronic data or products or their appropriateness for any user's purposes. In no event will the State of Alaska be liable for any incidental, indirect, special, consequential, or other damages suffered by the user or any other person or entity whether from the use of the electronic services or products or any failure thereof or otherwise. In no event will the State of Alaska's liability to the Requestor or anyone else exceed the fee paid for the electronic service or product.
The State of Alaska makes no expressed or implied warranties (including warranties for merchantability and fitness) with respect to the character, functions, or capabilities of the electronic data or products or their appropriateness for any user's purposes. In no event will the State of Alaska be liable for any incidental, indirect, special, consequential, or other damages suffered by the user or any other person or entity whether from the use of the electronic services or products or any failure thereof or otherwise. In no event will the State of Alaska's liability to the Requestor or anyone else exceed the fee paid for the electronic service or product.
| Data format: | Shapefiles and Raster data |
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https://doi.org/10.14509/30892 |