Tsunami Hazard Areas [TEST]

This tsunami hazard dataset contains three groups of information:(1) Tsunami Evacuation--This dataset shows evacuation routes, assembly areas, shelters, AHAB sirens, and critical facilities. The evacuation routes were developed in coordination with local emergency managers to assist coastal residents and visitors in pathfinding to safer locations in case of an earthquake and tsunami. The published pedestrian evacuation walk maps or evacuation brochures (where walk maps are not available), indicate direction of travel in select locations. The map and brochure dataset is also useful for representing where gaps in evacuation products exist.(2) Hazard Areas --The tsunami hazard area dataset is a compilation of the modeled tsunami inundation (flooding), gathered from multiple tsunami hazard publications, representing multiple earthquake scenarios. Depending on location, this may be either an offshore earthquake from the Cascadia subduction zone or a local crustal fault within Puget Sound. To see the specific modeled effects from a single earthquake scenario, use the Tsunami Scenario Catalog. The Hazard Map Publications dataset contains study areas that have published tsunami inundation maps and original model data, where available provided through hyperlinks.Areas Not Modeled for Tsunami Hazard - No tsunami modeling has been done for these areas, but a tsunami hazard may still exist along all Washington State shorelines, and even within inland bodies of water.(3) Tsunami Scenarios Catalog--This catalog contains areas of inundation determined by 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.

Data and Resources

Additional Info

Field Value
Source https://data.wa.gov/resource/6re2-b2mv
Author Washington State Open Data Program
Last Updated February 10, 2026, 23:17 (UTC)
Created February 9, 2026, 23:06 (UTC)
1. This item is hosted on the state's open geospatial government data portal (geo.wa.gov), and cataloged here for the public's convenience. Please visit the URL linked above for the most complete information and geospatial-friendly tools.
Category Geo.wa.gov [test]
Contact Email mailto:opendata@dnr.wa.gov;gis@dnr.wa.gov
Contact Name OpenData_WGS_wadnr
Geographic Coverage -124.6513,45.4810,-116.7085,48.9894
Homepage https://geo.wa.gov/datasets/wadnr::tsunami-hazard-areas
Issued 2026-01-27T16:46:58.000Z
Last Update 2026-01-27T20:05:22.000Z
License
Period of Time n/a
Posting Frequency n/a
Public Access Level public
Publisher Washington State Department of Natural Resources
Theme geospatial
Unique Identifier https://www.arcgis.com/home/item.html?id=1b08422e62d64e238e8cc21f1d64187d&sublayer=9
harvest_object_id 60ca64b7-b141-4584-8b2a-7e8c5608b2f1
harvest_source_id c4128faf-39ff-4aa3-918e-8a395702cab3
harvest_source_title washington-state