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    • This is a Non-Federal dataset covered by different Terms of Use than Data.gov.

    Tsunami inundation maps for Adak and Atka, Alaska

    Metadata Updated: July 5, 2023

    We evaluate potential tsunami hazards for Adak and Atka by numerically modeling tsunami inundation generated by earthquakes along the Alaska-Aleutian subduction zone. Hypothetical worst-case scenarios are defined by analyzing tsunami dynamics related to various plausible earthquake slip distributions. Potential tsunami sources include megathrust earthquakes in the area of the Andreanof Islands, the Alaska Peninsula, and the Cascadia subduction zone. We consider scenarios similar to the 2011 Tohoku earthquake in Japan with maximum slip located on a shallow portion of the plate interface close to the seafloor trench. The maximum modeled tsunami wave height is 10-15 m (33-50 ft) in both Adak and Atka. The numerical simulations reveal that for some scenarios, the first wave could reach Adak and Atka as soon as 15 and 30 minutes after the earthquake, respectively. Significant wave activity could continue for more than 12 hours after the earthquake, and the predicted average time interval between successive waves is 45 minutes to 1 hour. Results presented here are intended to provide guidance to local emergency management agencies for tsunami inundation assessment, evacuation planning, and public education to mitigate future tsunami hazards. The complete report and digital data are available from the DGGS website: http://doi.org/10.14509/30186.

    Access & Use Information

    Non-Federal: This dataset is covered by different Terms of Use than Data.gov. License: No license information was provided.

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    Dates

    Metadata Date October 7, 2019
    Metadata Created Date July 5, 2023
    Metadata Updated Date July 5, 2023
    Reference Date(s) January 1, 2019 (publication)
    Frequency Of Update notPlanned

    Metadata Source

    Harvested from Alaska Division of Geological and Geophysical Surveys

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Date October 7, 2019
    Metadata Created Date July 5, 2023
    Metadata Updated Date July 5, 2023
    Reference Date(s) January 1, 2019 (publication)
    Responsible Party Alaska Division of Geological & Geophysical Surveys (Point of Contact)
    Contact Email
    Guid c8beab89-90e2-425a-877f-359ccd9c3fda_source
    Access Constraints Use Constraints: 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., 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).
    Bbox East Long -174.169057
    Bbox North Lat 52.237032
    Bbox South Lat 51.844269
    Bbox West Long -176.674276
    Coupled Resource
    Frequency Of Update notPlanned
    Harvest Object Id c8beab89-90e2-425a-877f-359ccd9c3fda
    Harvest Source Id 8f77b6d5-f630-4995-bdf3-0aee7158a7f3
    Harvest Source Title Alaska Division of Geological and Geophysical Surveys
    Licence 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.
    Lineage This lineage was generated by the FGDC CSDGM to 19139 transformation
    Metadata Language eng; USA
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-176.674276, 51.844269], [-174.169057, 51.844269], [-174.169057, 52.237032], [-176.674276, 52.237032], [-176.674276, 51.844269]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 2015-01-01
    Temporal Extent End 2019-01-01

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