Filters: Tags: Tectonics (X) > partyWithName: Koehler, R.D. (X)

Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Contacts Alaska Division of Geological & Geophysical Surveys Nicolsky, D.J. Suleimani, E.N. Reger, R.D. Salisbury, J.B. Simone Montayne Stevens, D.S.P. Tag Types Theme (3) Place (3) Tag Schemes Alaska Division of Geological & Geophysical Surveys (3) ISO 19115 Topic Category (3) View Results as: JSON ATOM CSV

Surficial geology of the Tyonek area, south-central Tyonek Quadrangle, Alaska The Tyonek area in the northwestern Cook Inlet trough is rich in petroleum, coal, geothermal, aggregate, and timber resources, but the detailed geologic mapping necessary for planning future resource development exists only in part of the area. This report and geologic map provide basic surficial-geologic information useful for exploiting those resources and planning future utility corridor developments. In addition to mapping of surficial geologic units, we provide discussion of strategraphic evidence pertaining to physiographic relations and geologic history of volcaniclastic deposits derived from ancestral Mount Spurr, multiple phases of Quaternary glacial activity, Chakachatna River valley landslide complexes... Tags: Alaska Earthquake 1964, Alluvial Fan, Beluga Plateau, Beluga River, Blockade Glacier, All tags... Capps Glacier, Chakachatna River, Chakachatna-McArthur Embayment, Chalcedony, Chigmit Mountains, Chuitna Coal Project, Chuitna River, Coastal Plain, Colluvium, Cook Inlet, Cook Inlet Basin, Correlation, Debris Avalanche, Depositional Environment, Diamictons, Earthquake Related Slope Failure, Erratics, Fault Displacement, Glacial Geology, Glacier Outburst Flood, Glacioestuarine Deposits, Jasper, Jokulhlaup, Lahar, Landslide Deposit, Little Ice Age, Moraines, Mount Spurr, Neacola Mountains, Neoglacial, Neotectonics, Penultimate Glaciation, Radiocarbon Ages, Rotational Landslide, STATEMAP Project, Sediment Gravity Flow, Straight Creek, Surface Fault Rupture, Surficial Geologic Map, Surficial Geology, Susitna Lowland, Tectonics, Threemile Creek, Till, Tordrillo Mountains, Tyonek, Tyonek Quadrangle, Volcaniclastic Deposits, geoscientificInformation, Fewer tags Tsunami inundation maps for Juneau, Alaska In this report, we evaluate potential tsunami hazards for the southeastern Alaska community of Juneau and numerically model the extent of inundation from tsunami waves generated by tectonic and submarine landslide sources. We calibrate our tsunami model by numerically simulating the 2011 Tohoku tsunami at Juneau and comparing our results to instrument records. Analysis of calculated and observed water level dynamics for the 2011 event in Juneau reveals that the model underestimates the observed wave heights in the city by a factor of two, likely due to complex tsunami-tide interactions. We compensate for this numerical underestimation by doubling the coseismic slip of the hypothetical tsunami sources in our models.... Tags: Bathymetry, Berners Bay, Coastal, Douglas, Douglas Island, All tags... Eagle River, Earthquake, Engineering, Environmental, Faults, Favorite Channel, Flood, Fritz Cove, Geologic, Geology, Geotechnical, Hazards, Inundation, Juneau, Landslide, Marine, Mendenhall River, Modeling, Regional, Rockfall, Saginaw Channel, Sediment, Sedimentation, Sheep Creek, Slides, Slope, Slump, Southeast Alaska, Subduction, Subsidence, Surface, Taku Inlet, Tectonics, Topography, Tsunami, Uplift, Water, geoscientificInformation, Fewer tags Updated tsunami inundation maps of the Kodiak area, Alaska Staff from Alaska Earthquake Center, Geophysical Institute and Alaska Division of Geological & Geophysical Surveys evaluated potential potential tsunami hazard for the communities of Kodiak, Womens Bay, and for the U.S. Coast Guard base on Kodiak Island by numerically modeling the extent of inundation from tsunami waves generated by hypothetical earthquake sources. Worst-case hypothetical scenarios are defined by analyzing results of a sensitivity study of the tsunami dynamics related to various slip distributions along the Alaska-Aleutian megathrust. The worst-case scenarios for the Kodiak communities are thought to be the subduction zone earthquakes offshore Kodiak Island with their greatest slip at 5-35 km (3.1-22... Tags: Active Fault, Bathymetry, Coastal, Coastal and River, Earthquake, All tags... Emergency Preparedness, Engineering, Engineering Geology, Environmental, Fault Displacement, Faulting, Faults, Flood, Geologic, Geologic Hazards, Geology, Hazards, Inundation, Kodiak, Kodiak Island, Kodiak Island Borough, Kodiak Quadrangle, Kodiak Station, Land Subsidence, Landslide, Marine Geology, Modeling, Neotectonics, Pillar Mountain, Seismic Hazards, Slope, Subduction, Subsidence, Surface, Tectonics, Tides, Topography, Tsunami, Water, geoscientificInformation, Fewer tags