2003 Seattle Annual Meeting (November 2–5, 2003)
Session No. 183 Tuesday, November 4, 2003
1:30 PM-5:30 PM, Washington State Convention and Trade Center: Ballroom 6C

T150. New Views of Seismic Hazard in Cascadia I: Seismology and Seismotectonics II

Thomas M. Brocher, Kate C. Miller and Samuel Y Johnson, Presiding
 Paper #Start Time
183-11:30 PM LANDWARD LIMIT OF COSEISMIC SLIP IN GREAT SUBDUCTION ZONE EARTHQUAKES - IMPLICATIONS FOR GREAT EARTHQUAKES IN CASCADIA: WELLS, Ray E., U.S. Geol Survey, 345 Middlefield Rd MS 973, Menlo Park, CA 94025, rwells@usgs.gov, BLAKELY, Richard J., U.S. Geol Survey, MS 989, 345 Middlefield Road, Menlo Park, CA 94025-3591, SUGIYAMA, Yuichi, National Institute of Advanced Industrial Sci and Technology, 1-1-3 Higashi, Tsukuba, Ibaraki, 305-8567, Japan, SCHOLL, David W., U.S. Geol Survey, 345 Middlefield Rd, MS 999, Menlo Park, CA 94025, and DINTERMAN, Philip A., U.S. Geol Survey, 345 Middlefield Rd, Menlo Park, CA 94025
183-21:45 PM COSEISMIC SUBSIDENCE IN THE 1700 GREAT CASCADIA EARTHQUAKE: CONSTRAINT ON THE RUPTURE AREA: LEONARD, Lucinda J.1, HYNDMAN, Roy D.2, and MAZZOTTI, Stephane2, (1) School of Earth and Ocean Sciences, Univ of Victoria, Victoria, BC V8W3P6, Canada, lucindal@uvic.ca, (2) Pacific Geoscience Centre, 9860 West Saanich Road, Sidney, BC V8L 4B2
183-32:00 PM THE 1700 CASCADIA TSUNAMI INITIATED A FATAL SHIPWRECK IN JAPAN: ATWATER, Brian F., U.S. Geol Survey, Department of Earth and Space Sciences, Box 351310, University of Washington, Seattle, WA 98195-1310, atwater@u.washington.edu and SATAKE, Kenji, Active Fault Research Center, AIST, 1-1-1 Higashi, Site C7, Tsukuba, 305-8567, Japan
183-42:15 PM BURIED SOILS, TREE RINGS, AND OLD MAPS SUGGEST THAT THE 1960 CHILE EARTHQUAKE WAS LARGER THAN ITS PREDECESSORS OF 1837 AND 1737: CISTERNAS, Marco, Agronomy Faculty, Catholic University of Valparaiso, San Francisco s/n, La Palma, Quillota, marco.cisternas@ucv.cl, ATWATER, Brian, U.S. Geological Survey at Department of Earth and Space Sciences, Univ of Washington, Seattle, WA 98195-1310, Seattle, WA, MACHUCA, Gonzalo, Department of Historical & Social Sciences, Univ of Concepcion, Barrio Universitario s/n, Concepcion, and LAGOS, Marcelo, Institute of Geography, Catholic Univ of Chile, Av. Vicuña Mackenna 4860, Santiago, Chile
183-52:30 PM MECHANICAL MODEL FOR THE CASCADIA SUBDUCTION WEDGE, FOREARC BASINS AND MEGATHRUST EARTHQUAKES: WILLETT, Sean D.1, BRANDON, Mark2, and FULLER, Christopher1, (1) Department of Earth and Space Sciences, Univ of Washington, Seattle, WA 98195, swillett@u.washington.edu, (2) Dept of Geology and Geophysics, Yale Univ, PO Box 208109, New Haven, CT 06520-8109
183-62:45 PM THE INFLUENCE OF SEDIMENTARY BASINS ON GROUND SHAKING IN THE PUGET LOWLAND, WASHINGTON STATE: PRATT, Thomas L., U.S. Geol Survey, School of Oceanography, University of Washington, Seattle, WA 98195, tpratt@ocean.washington.edu, BROCHER, Thomas M., MS 977, US Geol Survey, 345 Middlefield Rd, Menlo Park, CA 94025-3561, LI, Qin, Department of Earth and Planetary Sciences, Univ. of WA, Seattle, WA 98195, and WILCOCK, William, School of Oceanography, Univ of WA, Box 357940, Seattle, WA 98195
183-73:00 PM REINTERPRETATION OF THE SEATTLE UPLIFT, WASHINGTON, AS A PASSIVE ROOF DUPLEX: BROCHER, Thomas M., U.S. Geol Survey, MS 977, 345 Middlefield Road, Menlo Park, CA 94025-3591, brocher@usgs.gov, BLAKELY, Richard J., U.S. Geol Survey, MS 989, 345 Middlefield Road, Menlo Park, CA 94025-3591, and WELLS, Ray E., U.S. Geol Survey, MS 973, 345 Middlefield Road, Menlo Park, CA 94025
 3:15 PM Break
183-83:30 PM LANDFALL OF THE SEATTLE FAULT ZONE, WEST SEATTLE, WA: BOOTH, Derek B., TROOST, Kathy Goetz, and SHIMEL, Scott A., Department of Earth and Space Sciences, Univ of Washington, Box 351310, Seattle, WA 98195, dbooth@u.washington.edu
183-93:45 PM A LATE HOLOCENE EARTHQUAKE ON CENTRAL WHIDBEY ISLAND: SURFACE FOLDING ABOVE A BLIND FAULT: KELSEY, Harvey M., Dept . of Geology, Humboldt State Univ, Arcata, CA 95521, hmk1@humboldt.edu, SHERROD, Brian L., Dept. of Earth and Space Sciences, U.S. Geol Survey, Box 351310, University of Washington, Seattle, WA 98195, and JOHNSON, Samuel Y., U. S. Geological Survey, MS 966, Box 25046, Denver, CO 80225
183-104:00 PM THE EVERETT FAULT: A NEWLY DISCOVERED LATE QUATERNARY FAULT IN NORTH-CENTRAL PUGET SOUND, WASHINGTON: MOLINARI, Mark P. and BURK, Robert L., URS Corporation, 1501 4th Avenue, Suite 1400, Seattle, WA 98101-1616, mark_molinari@urscorp.com
183-114:15 PM EVIDENCE FOR ONE OR TWO LATE HOLOCENE EARTHQUAKES ON THE UTSALADY POINT FAULT, NORTHERN PUGET LOWLAND, WASHINGTON: JOHNSON, Samuel Y.1, NELSON, Alan R.2, PERSONIUS, Stephen F.3, WELLS, Ray E.4, KELSEY, Harvey M.5, SHERROD, Brian L.6, OKUMURA, Koji7, KOEHLER, Richard III8, WITTER, Robert C.9, and BRADLEY, Lee-Ann2, (1) U. S. Geological Survey, MS 966, Box 25046, Denver, CO 80225, sjohnson@usgs.gov, (2) U.S. Geol Survey, MS 966, PO Box 25046, Denver, CO 80225-0046, (3) U.S. Geol Survey, Box 25046, MS 966, Denver Federal Center, Denver, CO 80225, (4) U.S. Geol Survey, 345 Middlefield Rd MS 973, Menlo Park, CA 94025, (5) Dept . of Geology, Humboldt State Univ, Arcata, CA 95521, (6) Dept. of Earth and Space Sciences, U.S. Geol Survey, Box 351310, University of Washington, Seattle, WA 98195, (7) Department of Geography, Hiroshima Univ, 1-2-3 Hagamiyama, Higashi-Hiroshima, 739-8522, Japan, (8) William Lettis and Associates, Inc, 17777 Botelho Drive, Suite 262, Walnut Creek, CA 94596, (9) William Lettis & Associates, Inc, 1777 Botelho Dr., Suite 262, Walnut Creek, CA 94596
183-124:30 PM THE OLYMPIA STRUCTURE: RAMP OR DISCONTINUITY? NEW GRAVITY DATA PROVIDE MORE INFORMATION: MAGSINO, Sammantha1, SANGER, Elizabeth2, WALSH, Timothy J.1, PALMER, Stephen P.3, and BLAKELY, Richard J.2, (1) Division of Geology and Earth Resources, Department of Natural Resources, POB 47007, Olympia, WA 98504-7007, Afghanistan, sammantha.magsino@wadnr.gov, (2) U.S. Geol Survey, 345 Middlefield Road, Menlo Park, CA 94025, (3) Division of Geology and Earth Resources, Department of Nat Rscs, POB 47007, Olympia, WA 98504-7007
183-134:45 PM WESTERN RAINIER SEISMIC ZONE AIRBORNE LASER SWATH MAPPING: HARDING, David J.1, HAUGERUD, Ralph A.2, JOHNSON, Samuel Y.3, SCOTT, Kevin M.4, WEAVER, Craig S.2, MARTINEZ, Diana M.5, ZEIGLER, John C.6, and LATYPOV, Damir6, (1) Geodynamics Branch, NASA Goddard Space Flight Ctr, Mail Code 921, Greenbelt, MD 20771, david.j.harding@nasa.gov, (2) United States Geol Survey, Seattle, WA, (3) United States Geol Survey, Denver, CO, (4) United States Geol Survey, Vancouver, WA, (5) Puget Sound Regional Council, Seattle, WA, (6) TerraPoint, LLC, Houston, TX

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