Active Tectonics and Seismic Potential of Alaska: (179 Geophysical Monograph Series)

Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 179. This multidisciplinary monograph provides the first modern integrative summary focused on the most spectacular active tectonic systems in North America. Encompassing seismology, tectonics, geology, and geodesy, it includes papers that summarize the state of knowledge, including background material for those unfamiliar with the region; address global hypotheses using data from Alaska; and test important global hypotheses using data from this region. It is organized around four major themes: subduction and great earthquakes at the Aleutian Arc, the transition from strike slip to accretion and subduction of the Yakutat microplate, the Denali fault and related structures and their role in accommodating permanent deformation of the overriding plate, and regional integration and large-scale models and the use of data from Alaska to address important global questions and hypotheses. The book's publication near the beginning of the National Science Foundation's EarthScope project makes it especially timely because Alaska is perhaps the least understood area within the EarthScope footprint, and interest in the region can be expected to rise with time as more EarthScope data become available.

Table of Contents:
Preface Jeffrey 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 Measurements Jeffrey 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 Overview Gary Carver and George Plafker 43 Neotectonics of the Yakutat Collision: Changes in Deformation Driven by Mass Redistribution James 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 Yakutat Microplate Collision Peter J. Haeussler 83 Active Tectonics of Interior Alaska: Seismicity, GPS Geodesy, and Local Geomorphology Natalia 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 Rotations Lena Krutikov, David B. Stone, and Pavel Minyuk 135 Exhumation in the Chugach-Kenai Mountain Belt Above the Aleutian Subduction Zone, Southern Alaska Jamie T. Buscher, Aaron L. Berger, and James A. Spotila 151 Active Faults on Northeastern Kodiak Island, Alaska G. 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 Girdwood Ian Shennan, Natasha Barlow, and Rod Combellick 185 Seismicity of the Prince William Sound Region and Its Relation to Plate Structure and the 1964 Great Alaska Earthquake Diane 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 Earthquakes George Plafker and Wayne Thatcher 215 Yakataga Fold-and-Thrust Belt: Structural Geometry and Tectonic Implications of a Small Continental Collision Zone Wesley K. Wallace 237 Identifying Active Structures in the Kayak Island and Pamplona Zones: Implications for Offshore Tectonics of the Yakutat Microplate, Gulf of Alaska Lindsay 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 Cordillera Stephane Mazzotti, Lucinda J. Leonard, Roy D. Hyndman, and John F. Cassidy 297 Contemporary Fault Mechanics in Southern Alaska James L. Kalbas, Andrew M. Freed, and Kenneth D. Ridgway 321 Orogenesis From Subducting Thick Crust and Evidence From Alaska Geoffrey A. Abers 337 Stress Map for Alaska From Earthquake Focal Mechanisms Natalia 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 Aleutians Robert L. Wesson, Oliver S. Boyd, Charles S. Mueller, and Arthur D. Frankel 385 Toward a Time-Dependent Probabilistic Seismic Hazard Analysis for Alaska Oliver S. Boyd, Yuehua Zeng, Charles G. Bufe, Robert L. Wesson, Fred Pollitz, and Jeanne L. Hardebeck 399 Fault Interaction in Alaska: Static Coulomb Stress Transfer Charles G. Bufe and Oliver S. Boy 417 Index 431

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