Active Tectonics and Seismic Potential of Alaska

Jeffrey T. Freymueller is a professor of Geophysics Geophysical Institute University of Alaska, Fairbanks Fairbanks, AK.

• PrefaceJeffrey T. Freymueller, Peter J. Haeussler, Rob Wesson, and Göran Ekström vii Section I: Overviews Active Deformation Processes in Alaska, Based on 15 Years of GPS MeasurementsJeffrey T. Freymueller, Hilary Woodard, Steven C. Cohen, Ryan Cross, Julie Elliott, Christopher F. Larsen, Sigrún Hreinsdóttir, and Chris Zweck 1 Paleoseismicity and Neotectonics of the Aleutian Subduction Zone—An OverviewGary Carver and George Plafker 43 Neotectonics of the Yakutat Collision: Changes in Deformation Driven by Mass RedistributionJames B. Chapman, Terry L. Pavlis, Sean Gulick, Aaron Berger, Lindsay Lowe, James Spotila, Ronald Bruhn, Michael Vorkink, Peter Koons, Adam Barker, Carlos Picornell, Ken Ridgway, Bernard Hallet, John Jaeger, and James McCalpin 65 An Overview of the Neotectonics of Interior Alaska: Far-Field Deformation From the YakutatMicroplate CollisionPeter J. Haeussler 83 Active Tectonics of Interior Alaska: Seismicity, GPS Geodesy, and Local GeomorphologyNatalia A. Ruppert, Kenneth D. Ridgway, Jeffrey T. Freymueller, Ryan S. Cross, and Roger A. Hansen 109 Section II: The Alaska-Aleutian Subduction Zone New Paleomagnetic Data From the Central Aleutian Arc: Evidence and Implications for Block RotationsLena Krutikov, David B. Stone, and Pavel Minyuk 135 Exhumation in the Chugach-Kenai Mountain Belt Above the Aleutian Subduction Zone, Southern AlaskaJamie T. Buscher, Aaron L. Berger, and James A. Spotila 151 Active Faults on Northeastern Kodiak Island, AlaskaG. Carver, J. Sauber, W. Lettis, R. Witter, and B. Whitney 167 Paleoseismological Records of Multiple Great Earthquakes in Southcentral Alaska: A 4000-Year Record at GirdwoodIan Shennan, Natasha Barlow, and Rod Combellick 185 Seismicity of the Prince William Sound Region and Its Relation to Plate Structure and the1964 Great Alaska EarthquakeDiane I. Doser, Alejandro de la Peña, and Annette M. Veilleux 201 Section III: The Yakutat Collision Between the Subduction and Transform Boundaries Geological and Geophysical Evaluation of the Mechanisms of the Great 1899 Yakutat Bay EarthquakesGeorge Plafker and Wayne Thatcher 215 Yakataga Fold-and-Thrust Belt: Structural Geometry and Tectonic Implications of a Small Continental Collision ZoneWesley K. Wallace 237 Identifying Active Structures in the Kayak Island and Pamplona Zones: Implications for Offshore Tectonics of the Yakutat Microplate, Gulf of AlaskaLindsay L. Worthington, Sean P. S. Gulick, and Terry L. Pavlis 257 Section IV: Deformation Inboard of the Plate Boundary Neogene Exhumation of the Tordrillo Mountains, Alaska, and Correlations With Denali (Mount McKinley)Peter J. Haeussler, Paul O’Sullivan, Aaron L. Berger, and James A. Spotila 269 Does a Boundary of the Wrangell Block Extend Through Southern Cook Inlet and Shelikof Strait, Alaska?Michael A. Fisher, Ray W. Sliter, and Florence L. Wong 287 Section V: Integrative Models, Stress Transfer, and Seismic Hazards Tectonics, Dynamics, and Seismic Hazard in the Canada–Alaska CordilleraStephane Mazzotti, Lucinda J. Leonard, Roy D. Hyndman, and John F. Cassidy 297 Contemporary Fault Mechanics in Southern AlaskaJames L. Kalbas, Andrew M. Freed, and Kenneth D. Ridgway 321 Orogenesis From Subducting Thick Crust and Evidence From AlaskaGeoffrey A. Abers 337 Stress Map for Alaska From Earthquake Focal MechanismsNatalia A. Ruppert 351 Rapid Ice Mass Loss: Does It Have an Influence on Earthquake Occurrence in Southern Alaska?Jeanne M. Sauber and Natalia A. Ruppert 369 Challenges in Making a Seismic Hazard Map for Alaska and the AleutiansRobert L. Wesson, Oliver S. Boyd, Charles S. Mueller, and Arthur D. Frankel 385 Toward a Time-Dependent Probabilistic Seismic Hazard Analysis for AlaskaOliver S. Boyd, Yuehua Zeng, Charles G. Bufe, Robert L. Wesson, Fred Pollitz, and Jeanne L. Hardebeck 399 Fault Interaction in Alaska: Static Coulomb Stress TransferCharles G. Bufe and Oliver S. Boy 417 Index 431