Tsunami inundation maps of Seward and northern Resurrection Bay, Alaska

The purpose of this study is to evaluate tsunami hazard for the community of Seward and northern Resurrection Bay area, Alaska. This report will provide guidance to local emergency managers in tsunami hazard assessment. We used a numerical modeling method to estimate the extent of inundation by tsunami waves generated from earthquake and landslide sources. Our tsunami scenarios included a repeat of the tsunami of the 1964 Great Alaska Earthquake, as well as tsunami waves generated by two hypothetical Yakataga Gap earthquakes in northeastern Gulf of Alaska, hypothetical earthquakes in Prince William Sound and Kodiak asperities of the 1964 rupture, and local underwater landslides in Resurrection Bay. Results of numerical...

Tags: Coastal and River, Earthquake, Earthquake Related Slope Failure, Emergency Preparedness, Engineering, All tags... Engineering Geology, Fault Displacement, Faulting, Faults, Flood, Geologic Hazards, Geology, Inundation, Kenai Peninsula, Kenai Peninsula Borough Coastal District, Landslide, Modeling, Resurrection Bay, Seismic Hazards, Seward, Slides, Slope, Slope Instability, Southcentral Alaska, Surface, Tides, Tsunami, geoscientificInformation, Fewer tags

Photogrammetry-derived digital surface model and orthoimagery of land areas near Resurrection Bay, Alaska

The State of Alaska Division of Geological & Geophysical Surveys (DGGS) produced a digital surface model (DSM) and an orthorectified aerial optical image mosaic (orthoimagery) of the Resurrection Bay watershed, surrounding the city of Seward in south-central Alaska. Aerial photographs and Global Navigation Satellite System (GNSS) data were collected on August 13, 2015, and were processed using Structure-from-Motion (SfM) photogrammetric techniques to create the DSM and orthoimagery. All data are projected in UTM Zone 6 North (meters) using the NAD83 (2011; EPSG 26906) horizontal datum and NAVD88 (Geoid12A; EPOCH 2010.00) vertical datum. The project was part of an ongoing investigation of the impact of flooding,...

Tags: Aerial, Bear Creek, Bear Lake, Bear Lake Glacier, Bear Mountain, All tags... Box Canyon Creek, Caines Head, Callisto Peak, Clear Creek, Derby Cove, Engineering, Engineering Geology, Environmental, First Lake, Fourth of July Creek, Geologic, Geologic Hazards, Geological Process, Geology, Geomorphology, Godwin Creek, Grouse Lake, Hazards, Japanese Creek, Lakes, Likes Creek, Little Bear Lake, Lost Creek, Lost Lake Trail, Lowell Creek, Lowell Point, Marathon Mountain, Methods, Mount Alice, Mount Benson, Mount Eva, Orthoimagery, Phoenix Peak, Preachers Pond, Prospect Glacier, Race Point, Raster Image, Resurrection Bay, Resurrection River, Salmon Creek, Sawmill Creek, Scheffler Creek, Second Lake, Seward, Slope, Spring Creek, Spruce Creek, Surface, Surficial, Surficial Geology, The Lagoon, Thumb Cove, Tiehacker Mountain, Tonsina Creek, Tonsina Point, Vegetation, Water, Woodrow, geoscientificInformation, Fewer tags

Photogrammetry-derived digital surface model and orthoimagery of land areas near Resurrection Bay, Alaska

The State of Alaska Division of Geological & Geophysical Surveys (DGGS) produced a digital surface model (DSM) and an orthorectified aerial optical image mosaic (orthoimagery) of the Resurrection Bay watershed, surrounding the city of Seward in south-central Alaska. Aerial photographs and Global Navigation Satellite System (GNSS) data were collected on August 13, 2015, and were processed using Structure-from-Motion (SfM) photogrammetric techniques to create the DSM and orthoimagery. All data are projected in UTM Zone 6 North (meters) using the NAD83 (2011; EPSG 26906) horizontal datum and NAVD88 (Geoid12A; EPOCH 2010.00) vertical datum. The project was part of an ongoing investigation of the impact of flooding,...

Tags: Aerial, Bear Creek, Bear Lake, Bear Lake Glacier, Bear Mountain, All tags... Box Canyon Creek, Caines Head, Callisto Peak, Clear Creek, Derby Cove, Engineering, Engineering Geology, Environmental, First Lake, Fourth of July Creek, Geologic, Geologic Hazards, Geological Process, Geology, Geomorphology, Godwin Creek, Grouse Lake, Hazards, Japanese Creek, Lakes, Likes Creek, Little Bear Lake, Lost Creek, Lost Lake Trail, Lowell Creek, Lowell Point, Marathon Mountain, Methods, Mount Alice, Mount Benson, Mount Eva, Orthoimagery, Phoenix Peak, Preachers Pond, Prospect Glacier, Race Point, Raster Image, Resurrection Bay, Resurrection River, Salmon Creek, Sawmill Creek, Scheffler Creek, Second Lake, Seward, Slope, Spring Creek, Spruce Creek, Surface, Surficial, Surficial Geology, The Lagoon, Thumb Cove, Tiehacker Mountain, Tonsina Creek, Tonsina Point, Vegetation, Water, Woodrow, geoscientificInformation, Fewer tags