2014 GSA Annual Meeting in Vancouver, British Columbia (19–22 October 2014)

Session No. 90
Monday, 20 October 2014: 8:00 AM-12:00 PM
116/117 (Vancouver Convention Centre-West)

T25. Megathrusts: 50 Years after the 1964 Great Alaska Earthquake—In Honor of George Plafker

GSA Structural Geology and Tectonics Division; GSA Geophysics Division

 

Ray E. Wells, Peter J. Haeussler and Kelin Wang, Advocates
Paper #
Start Time
 
8:00 AM
Introductory Remarks
8:05 AM
THE 1964 GREAT ALASKA EARTHQUAKE AND THE SUBDUCTION ZONE EARTHQUAKE CYCLE
FREYMUELLER, Jeffrey, Geophysical Institute, University of Alaska Fairbanks, 903 Koyukuk Dr, PO Box 757320, Fairbanks, AK 99775
8:20 AM
HOLOENCE COSEISMIC RUPTURE PATTERNS FROM GREAT EARTHQUAKES: SEWARD TO MIDDLETON ISLAND, ALASKA
LIBERTY, Lee M., Geosciences, Boise State University, Center for Geophysical Investigations of the Shallow Subsurface, 1910 University Drive, Boise, ID 83725-1536, BROTHERS, D.S., Pacific Coastal and Marine Science Center, U.S. Geological Survey, Santa Cruz, CA 95060 and HAEUSSLER, Peter J., U.S. Geological Survey, 4210 University Dr, Anchorage, AK 99508
8:35 AM
LONG-TERM FOCUSED EXHUMATION ALONG MEGATHRUST SPLAY FAULTS AT MONTAGUE AND HINCHINBROOK ISLANDS, PRINCE WILLIAM SOUND, ALASKA
ARMSTRONG, Phillip A., Geological Sciences, California State University, Fullerton, 800 N. State College Blvd, Fullerton, CA 92831, FERGUSON, Kelly M., Geological Sciences, California State University, Fullerton, 800 N. State College Blvd, Fullerton, CA 92834, ARKLE, Jeanette C., Department of Geology, University of Cincinnati, ML 013, Cincinnati, OH 45221 and HAEUSSLER, Peter J., U.S. Geological Survey, 4210 University Dr, Anchorage, AK 99508
8:50 AM
MEGATHRUST SPLAY FAULTS IN PRINCE WILLIAM SOUND, ALASKA: INTERPLAY BETWEEN UNDERPLATING, EXHUMATION, EXTENSION, AND RHEOLOGY
HAEUSSLER, Peter J.1, ARMSTRONG, Phillip A.2, LIBERTY, Lee M.3, FERGUSON, Kelly M.4, FINN, Shaun3, ARKLE, Jeanette C.5 and PRATT, Thomas6, (1)U.S. Geological Survey, 4210 University Dr, Anchorage, AK 99508, (2)Geological Sciences, California State University, Fullerton, 800 N. State College Blvd, Fullerton, CA 92831, (3)Geosciences, Boise State University, Center for Geophysical Investigations of the Shallow Subsurface, 1910 University Drive, Boise, ID 83725-1536, (4)Geological Sciences, California State University, Fullerton, 800 N. State College Blvd, Fullerton, CA 92834, (5)Department of Geology, University of Cincinnati, Cincinnati, OH 45221, (6)U.S. Geological Survey, 12201 Sunrise Valley Drive, MS 905, Reston, VA 20192
9:05 AM
SLIP ON THE SUCKLING HILLS SPLAY FAULT DURING THE 1964 ALASKA EARTHQUAKE
CHAPMAN, James B., Geosciences, University of Arizona, 1040 E. 4th St, Tucson, AZ 85712, ELLIOTT, Julie, Earth, Atmospheric, and Planetary Sciences, Purdue University, 550 Stadium Mall Drive, West Lafayette, IN 47907, DOSER, Diane I., Geological Sciences, University of Texas at El Paso, El Paso, TX 79968 and PAVLIS, Terry, Department of Geological Sciences, University of Texas at El Paso, El Paso, TX 79902
9:20 AM
NEW KINEMATIC MODEL OF THE YAKUTAT, CRESCENT, AND SILETZ TERRANES AND ITS IMPLICATIONS FOR EARTHQUAKE HAZARDS
MCCRORY, Patricia A., U.S. Geological Survey, Menlo Park, CA 94025 and WILSON, Douglas S., Department of Earth Science, University of California, 1006 Webb Hall, Santa Barbara, CA 93106
9:35 AM
THE PLATE BOUNDARY THRUST OF THE 2011 MW 9.0 TOHOKU EARTHQUAKE: ORIGIN OF THE SCALY PELAGIC CLAY THAT ALLOWED SHALLOW SLIP PROPAGATION AND TSUNAMI GENERATION
MOORE, James Casey, Earth and Planetary Sciences, UC Santa Cruz, 2465 Empire Grade, Santa Cruz, CA 95064, PLANK, Terry A., Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY 10964, CHESTER, Frederick M., Center for Tectonophysics, Department of Geology and Geophysics, Texas A&M University, College Station, TX 77843, POLISSAR, Pratigya J., Biology and Paleo Environment, Lamont Doherty Earth Observatory, Palisades, NY 10964-8000 and SAVAGE, Heather M., Seismology Geology and Tectonophysics, Lamont Doherty Earth Observatory, 61 Route 9W, PO Box 1000, Palisades, NY 10964-8000
9:50 AM
LESSONS LEARNED FROM CO- AND POST-SEISMIC SEAFLOOR GEODETIC OBSERVATIONS OF THE M 9 TOHOKU-OKI EARTHQUAKE
WANG, Kelin1, SUN, Tianhaozhe2, HINO, Ryota3, IINUMA, Takeshi3, HE, Jiangheng1, FUJIMOTO, Hiromi3, KIDO, Motoyuki3 and OSADA, Yukihito3, (1)Geological Survey of Canada, Pacific Geoscience Centre, 9860 West Saanich Road, Sidney, BC V8L 4B2, Canada, (2)School of Earth and Ocean Sciences, University of Victoria, Victoria, BC V8P 5C2, Canada, (3)International Research Institute of Disaster Science, Tohoku University, Sendai, 980-8578, Japan
 
10:05 AM
Break
10:15 AM
FAULT CREEP AND INTERSEISMIC DEFORMATION IN THE JAPAN-KURIL SUBDUCTION ZONE
HETLAND, Eric A., Department of Earth and Environmental Sciences, University of Michigan, 2534 C. C. Little Building, 1100 North University Avenue, Ann Arbor, MI 48109-1005, KANDA, Ravi V.S., Department of Geology, Utah State University, 4505 Old Main Hill, Logan, UT 84322 and SIMONS, Mark, Department of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125
10:30 AM
ORAL HISTORIES OF THE 1945 MAKRAN DISASTER
KAKAR, Din Mohammad, Department of Geology, University of Balochistan, Quetta, Pakistan, NAEEM, Ghazala, Risk-Reduction Consultant, Islamabad, Pakistan, USMAN, Abdullah, Rural Community Development Council, Gwadar, Pakistan and ATWATER, Brian F., USGS, University of Washington 351310, Seattle, WA 98195
10:45 AM
COMPLETING THE CYCLE?  NEAR-FIELD OBSERVATIONS OF INTERSEISMIC COUPLING, MEGATHRUST RUPTURE, POSTSEISMIC RESPONSE, AND RECOVERY OF INTERFACE COUPLING ALONG THE NICOYA PENINSULA OF COSTA RICA
NEWMAN, Andrew V.1, PROTTI, Marino2, KYRIAKOPOULOS, Christodoulos1, FENG, Lujia3, DIXON, Timothy H.4, MALSERVISI, Rocco5, WALTER, Jacob I.6, PENG, Zhigang1, SCHWARTZ, Susan Y.7 and MARSHALL, Jeffrey S.8, (1)School of Earth and Atmospheric Sciences, Georgia Institute of Technology, 311 Ferst Drive, MS-0340, Atlanta, GA 30332, (2)Ovsicori, Universidad Nacional, Heredia, Costa Rica, (3)Earth Observatory of Singapore, Nanyang Technological University, Singapore, 639798, Singapore, (4)School of Geosciences, University of South Florida, Tampa, FL 33620, (5)Department of Geology, University of South Florida, 4202 E. Fowler Ave, SCA 528, Tampa, FL 33620, (6)Institute for Geophysics, University of Texas at Austin, Austin, TX 78758, (7)Earth and Planetary Sciences, University of South Florida, Santa Cruz, CA 95064, (8)Geological Sciences Department, Cal Poly Pomona University, Pomona, CA 91768
11:00 AM
MEGATHRUST EARTHQUAKES AND MORPHOTECTONIC EVOLUTION OF THE NICOYA PENINSULA FOREARC, COSTA RICA, CENTRAL AMERICA
MARSHALL, Jeff1, MORRISH, Shawn1, LAFROMBOISE, Eli2, BUTCHER, Amber1, KHAW, Fookgiin1, RITZINGER, Brent1, UTICK, John1, WELLINGTON, Kacie1, GARDNER, Tom3 and OWEN, Lewis4, (1)Geological Sciences Department, Cal Poly Pomona University, Pomona, CA 91768, (2)Geological Sciences Department, California State University Northridge, Northridge, CA 91330, (3)Geosciences Department, Trinity University, San Antonio, TX 78212, (4)Department of Geology, University of Cincinnati, Cincinnati, OH 45221
90-13
11:15 AM
Withdrawn
11:30 AM
PRELUDE TO THE APRIL 1, 2014 PISAGUA, CHILE GREAT EARTHQUAKE: POTENTIAL LESSONS FOR CASCADIA
ALLMENDINGER, Richard W.1, GONZÁLEZ, Gabriel2, SALAZAR, Pablo2, LOVELESS, John P.3 and ARON, Felipe4, (1)Department of Earth and Atmospheric Sciences, Cornell University, Snee Hall, Ithaca, NY 14853-1504, (2)Dpto. Ciencias Geológicas, Universidad Católica del Norte, Avenida Angamos 0610, Antofagasta, Chile, (3)Department of Geosciences, Smith College, Clark Science Center, 44 College Lane, Northampton, MA 01063, (4)Department of Earth and Atmospheric Sciences, Cornell University, Ithaca, NY 14853
11:45 AM
CASCADIA MEGATHRUST BEHAVIOR AND ITS CORRELATION WITH UPPER-PLATE STRUCTURE
WELLS, Ray E., U.S. Geological Survey, 345 Middlefield Rd, MS 973, Menlo Park, CA 94025, BLAKELY, Richard J., GMEG Menlo Park, U.S. Geological Survey, 345 Middlefield Rd, MS 989, Menlo Park, CA 94025, SIMPSON, Robert W., U.S. Geological Survey, 345 Middlefield Rd, Menlo Park, CA 94025 and DIETERICH, James, Earth Sciences, University of California, Riverside, 900 University Ave, Riverside, CA 92521
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