Newly Published: Port Angeles and Port Townsend Tsunami Inundation Hazard Maps

We are pleased to announce the publication of new tsunami hazard maps for Port Angeles and Port Townsend! Tsunami hazard maps of Port Angeles and Port Townsend, Washington—Model Results from a ~2,500-year Cascadia Subduction Zone Earthquake Scenario New tsunami modeling along the Strait of Juan de Fuca within an area surrounding the communities of Port […]

Newly Published: Anacortes–Bellingham Area Tsunami Inundation Hazard Maps

We are pleased to announce the publication of new tsunami hazard maps for the Anacortes–Bellingham region! Tsunami hazard maps of the Anacortes–Bellingham area, Washington—Model Results from a ~2,500-year Cascadia Subduction Zone Earthquake Scenario New finite-difference tsunami inundation modeling in the areas surrounding Anacortes and Bellingham uses a simulated magnitude 9 earthquake event with a maximum […]

New Washington lidar data and screensaver images!

New lidar data The Washington Geological Survey (WGS) has just released new lidar data for several areas in Washington. Since 2016 we have been involved in collecting over 6,400 square miles of lidar and have added many additional lidar datasets from our partners for public use. Lidar is a technology that uses light pulses to collect elevation […]

Newly Published: Southwest Washington Tsunami Inundation Hazard Maps

We are pleased to announce the publication of new tsunami hazard maps for southwest Washington! Tsunami Hazard Maps of Southwest Washington—Model Results from a ~2,500-year Cascadia Subduction Zone Earthquake Scenario New finite-difference modeling along the southern Washington coast in the area surrounding Willapa Bay and Grays Harbor uses a simulated magnitude 9 earthquake event with […]

WGS working to further earthquake understanding 17 years after Nisqually

Earthquake centered under Anderson Island touched off increased attention in earthquake science and emergency preparedness. It’s been a 17 years since Washington felt its last damaging earthquake. At 10:54 a.m. on Feb. 28, 2001 a magnitude 6.8 earthquake struck near Anderson Island. Known as the Nisqually Earthquake, the temblor shook the Pacific Northwest, with shaking […]

New Publication Released

We’re pleased to announce the release of a new publication by the intrepid Paul Hammond. This new map shows the bedrock and surficial geology of northern Yakima County along the north side of the Tieton River. Geologic map of the northern portions of the Rimrock Lake, Tieton Basin, and the western two-thirds of the Weddle Canyon […]

New Lidar Story Map for GIS Day!

To celebrate GIS Day, the Washington Geological Survey has released a new story map titled: The Bare Earth—How lidar in Washington state exposes geology and natural hazards. Geologists in Washington State use lidar to map landslides and faults, to study volcanoes, glaciers and rivers, and to model tsunami inundation. This narrative features over 50 intriguing […]