DOCSLIB.ORG

Seismic Hazard Assessment

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Seismic Hazard Assessment Seismic Hazard Assessment March 2011 Prepared by: AMEC Geomatrix, Inc. NWMO DGR-TR-2011-20 Seismic Hazard Assessment March 2011 Prepared by: AMEC Geomatrix, Inc. NWMO DGR-TR-2011-20 Seismic Hazard Assessment - ii - March 2011 THIS PAGE HAS BEEN LEFT BLANK INTENTIONALLY Seismic Hazard Assessment - iii - March 2011 Document History Title: Seismic Hazard Assessment Report Number: NWMO DGR-TR-2011-20 Revision: R000 Date: March 2011 AECOM Canada Ltd. Prepared by: B. Youngs (AMEC Geomatrix, Inc.) Reviewed by: G. Atkinson (University of Western Ontario) Approved by: R.E.J. Leech Nuclear Waste Management Organization Reviewed by: T. Lam Accepted by: M. Jensen Seismic Hazard Assessment - iv - March 2011 THIS PAGE HAS BEEN LEFT BLANK INTENTIONALLY Seismic Hazard Assessment - v - March 2011 EXECUTIVE SUMMARY This report develops design ground motions for Ontario Power Generation’s (OPG) proposed Deep Geologic Repository (DGR) project at the Bruce nuclear site in the Municipality of Kincardine, Ontario. One important aspect of site evaluation is the assessment of the earthquake ground motions that could occur during the design/service life of the DGR. To provide adequate protection for the public and the environment, the DGR would be designed to withstand the effects of very rare events, including the occurrence of strong earthquake ground shaking at the site. A probabilistic seismic hazard assessment (PSHA) was conducted for the DGR that incorporates uncertainties in the models and parameters that affect seismic hazard. Guidance on conducting a PSHA, with the goal of capturing the knowledge of the informed scientific community regarding the inputs to the analysis, was provided in a landmark report by the Senior Seismic Hazard Advisory Committee (SSHAC). In the PSHA for the Bruce nuclear site, the interpretations of the larger scientific community were incorporated by way of review of the available literature, as well as correspondence with researchers to obtain unpublished data and observations in a SSHAC Level 2 process. The study for the Bruce nuclear site builds on both the 1997 PSHA sponsored by the Atomic Energy Control Board to characterize seismic hazards in southern Ontario and a recent PSHA conducted for the region surrounding the Darlington nuclear site for OPG. In the PSHA for the Bruce nuclear site, future earthquakes that may affect the site are modeled using seismic sources. Seismic source characterization provides a probabilistic model for the rate of occurrence, spatial distribution, and size distribution of earthquakes within the region surrounding the site. The Bruce nuclear site lies in the stable continental region of eastern North America in an area of low, diffuse seismicity with no identified active faults. In such regions the primary data set used to develop a probabilistic model is the catalogue of regional earthquakes. The earthquake catalogue is limited by the duration of the sample (a few hundred years), and imperfect recording of past events, particularly in the period before the development of modern seismic monitoring networks. Thus, interpretations of other data, guided by scientific knowledge of the earthquake process, are used to extend the earthquake catalogue data to model the future occurrence of potentially damaging earthquakes in the site region. To do so, alternative models for the spatial distribution of future earthquakes are constructed based on interpretations of regions of the earth’s crust that have homogeneous properties. These regions represent seismic sources in a PSHA. The seismic source model developed for the Bruce nuclear site consists primarily of large regional seismic source zones used to model the occurrence of distributed earthquake activity. Uncertainty in characterizing the spatial distribution of future earthquakes within these sources was incorporated by the use of alternative source zone boundaries and spatial distribution models. In addition, the probabilistic model included a number of specific geologic/geophysical features that have been proposed in the scientific literature as potential active seismic sources. Most of these are located near the western end of Lake Ontario, but two of these, the Grenville Front tectonic zone and the Georgian Bay linear zone, extend closer to the site. A key uncertainty in the assessment of these potential local seismic sources is whether or not a source is seismogenic, defined as active and capable of generating moderate-to-large earthquakes. Multiple criteria, which include spatial association with seismicity and geologic evidence for brittle slip in the present stress/tectonic regime, are used to assess the probability that a source is seismogenic. The results of the PSHA conducted for the Bruce nuclear site provide uniform hazard response spectra (UHRS) at the surface for a reference hard rock site. The UHRS were calculated for Seismic Hazard Assessment - vi - March 2011 annual exceedance frequencies (AEF) in the range of 10-2 to 10-8 (return periods of 100 to 108 years). The regional source zones were found to be the dominant contributors to the hazard. The contribution of individual assessments to the uncertainty for various components in the seismic hazard computation was also examined. The results indicated that selection of the appropriate ground motion models is the largest contributor to the uncertainty in seismic hazard. The results of the PSHA are generally consistent with values published in the 2005 National Building Code of Canada (NBCC) when corrected to a common site condition and accounting for the differences in the selected ground motion models used in the two studies. The result of the PSHA indicate that the estimated ground motions at the surface on hard rock are expected to be less than 1.0g for annual exceedance frequencies of 10-5, the reference case, and 10-6, the extreme case. The following table summarized the results of the PSHA. Annual Exceedance Frequency Peak Ground Acceleration on Hard Rock (AEF) (%g) 1/1000 1.7 1/2500* 2.7 1/100,000 18.7 1/1,000,000 60.6 Note: * AEF for 2005 NBCC Completion of the development of design ground motions involved translating the reference hard rock PSHA results to appropriate horizons within the proposed DGR in a manner that preserves the probabilistic levels assigned to each UHRS. A probabilistic model for site response was developed utilizing measured dynamic properties of the site geologic units. This model was then used to develop UHRS at the DGR level (depth 680 m) and at seven selected reference horizon levels between the surface and the repository. In addition UHRS were developed for the ground surface for three representative site conditions which reflect differences in the amount of surficial material that may be removed. These UHRS are provided for both horizontal and vertical motions. The final task was to develop design time histories for the DGR and selected horizon levels. In order to represent the hazard with realistic earthquake motions, three earthquake scenarios were developed to represent the range of earthquakes contributing to the site hazard. Acceleration time histories were then spectrally matched to response spectra for these scenario earthquakes. The envelope of the response spectra for the three scenario earthquake time histories provides a good match to the DGR and horizon UHRS. Seismic Hazard Assessment - vii - March 2011 TABLE OF CONTENTS Page EXECUTIVE SUMMARY .............................................................................................................. V 1. INTRODUCTION ............................................................................................................... 1 1.1 OBJECTIVES ........................................................................................................ 1 1.2 DOCUMENT STRUCTURE ................................................................................... 1 2. GENERAL SITE DESCRIPTION AND CHARACTERISTICS .......................................... 3 2.1 SITE LOCATION AND DESCRIPTION ................................................................. 3 2.2 REGIONAL STRUCTURE AND GEOLOGIC HISTORY ....................................... 3 2.2.1 Superior Province ............................................................................................ 11 2.2.2 Southern Province ........................................................................................... 11 2.2.3 Granite Rhyolite Province ............................................................................... 11 2.2.4 East Continent and Midcontinent Rift Systems ............................................... 12 2.2.5 Grenville Province ........................................................................................... 15 2.2.5.1 Grenville Front ....................................................................................... 18 2.2.5.2 Central Metasedimentary Belt Boundary Zone ...................................... 20 2.2.5.3 Composite Arc Belt Boundary Zone ....................................................... 24 2.2.6 St. Lawrence Rift System ................................................................................ 25 2.2.7 Intracratonic Basins ......................................................................................... 28 2.2.8 Penobscot Orogeny ........................................................................................ 29 2.2.9 Taconic Orogeny ............................................................................................. 29 2.2.10 Salinic
Load more

Recommended publications
  • Nureg/Cr-7238
    NUREG/CR-7238 Guidance Document: Conducting Paleoliquefaction Studies for Earthquake Source Characterization Office of Nuclear Regulatory Research AVAILABILITY OF REFERENCE MATERIALS IN NRC PUBLICATIONS NRC Reference Material Non-N RC Reference Material As of November 1999, you may electronically access Documents available from public and special technical NUREG-series publications and other NRC records at libraries include all open literature items, such as books, the NRC's Public Electronic Reading Room at journal articles, transactions, Federal Register notices, http://www. nrc. gov/reading-rm.html. Publicly released Federal and State legislation, and congressional reports. records include, to name a few, NUREG-series Such documents as theses, dissertations, foreign reports publications; Federal Register notices; applicant, and translations, and non-NRC conference proceedings licensee, and vendor documents and correspondence; may be purchased from their sponsoring organization. NRC correspondence and internal memoranda; bulletins Copies of industry codes and standards used in a and information notices; inspection and investigative substantive manner in the NRC regulatory process are reports; licensee event reports; and Commission papers maintained at- and their attachments. The NRC Technical Library NRC publications in the NUREG series, NRC Two White Flint North regulations, and Title 10, "Energy," in the Code of 11545 Rockville Pike Federal Regulations may also be purchased from one Rockville, MD 20852-2738 of these two sources. These standards are available in the library for reference 1. The Superintendent of Documents use by the public. Codes and standards are usually U.S. Government Publishing Office copyrighted and may be purchased from the originating Washington, DC 20402-0001 organization or, if they are American National Standards, from- Internet: http://bookstore.gpo.gov Telephone: American National Standards Institute 1-866-512-1800 11 West 42nd Street Fax: (202) 512-2104 New York, NY 10036-8002 http://www.ansi.org 2.
    [Show full text]
  • Canadian Earthquakes - 1985-86
    GEOLOGICAL SURVEY OF CANADA PAPER 88-14 CANADIAN EARTHQUAKES - 1985-86 R.J. Wetmiller J. A. Drysdale R.B. Homer M. Lamontagne Energy, Mines and Energie, Mines et ••• Resources Canada Ressources Canada Canada THE ENERGY OF OUR RESOURCES THE POWER OF OUR IDEAS NOTE The format of the annual catalogue of Canadian earthquakes produced by the Geophysics Division and the Cordilleran and Pacific Geoscience Division of the Geological Survey of Canada has been chan­ ged with this edition. This catalogue covers two years of activity, only lists events with magnitude 4.0 or greater and is also available in a French version. Subsequent editions will be published every other year. More detailed information about Canadian earthquakes is available in the form of quarterly reports prepared by the Geological Survey. Enquiries about Canadian earthquakes, earthquake hazards or seis­ mological research in Canada should be directed to the Geophysics Division, 1 Observatory Crescent, Ottawa, Ontario, KIA OY3 (613-995-5548) or the Pacific Geoscience Centre, 9860 West Saanich Road, Sidney , B.C., V8L 4B2 (604-356-6500). GEOLOGICAL SURVEY OF CANADA PAPER 88-14 Seismological Series Number 97 CANADIAN EARTHQUAKES - 1985-86 R.J. Wetmiller J. A. Drysdale R.B. Homer M. Lamontagne 1989 © Minister of Supply and Services Canada 1989 Available in Canada through authorized bookstore agents and other bookstores or by mail from Canadian Government Publishing Centre Supply and Services Canada Ottawa, Canada Kl A OS9 and from Geological Survey of Canada offices: 60 l Booth Street Ottawa, Canada Kl A OE8 3303-33rd Street N.W., Calgary, Alberta T2L 2A7 100 West Pender Street Vancouver, B.C.
    [Show full text]
  • A New Analysis of the Magnitude of the February 1663 Earthquake at Charlevoix, Quebec
    A new analysis of the magnitude of the February 1663 earthquake at Charlevoix, Quebec Author: J. E. Ebel Persistent link: http://hdl.handle.net/2345/bc-ir:107016 This work is posted on eScholarship@BC, Boston College University Libraries. Published in Bulletin of the Seismological Society of America, vol. 101, no. 3, pp. 1024-1038, 2011 These materials are made available for use in research, teaching and private study, pursuant to U.S. Copyright Law. The user must assume full responsibility for any use of the materials, including but not limited to, infringement of copyright and publication rights of reproduced materials. Any materials used for academic research or otherwise should be fully credited with the source. The publisher or original authors may retain copyright to the materials. Bulletin of the Seismological Society of America This copy is for distribution only by the authors of the article and their institutions in accordance with the Open Access Policy of the Seismological Society of America. For more information see the publications section of the SSA website at www.seismosoc.org THE SEISMOLOGICAL SOCIETY OF AMERICA 400 Evelyn Ave., Suite 201 Albany, CA 94706-1375 (510) 525-5474; FAX (510) 525-7204 www.seismosoc.org Bulletin of the Seismological Society of America, Vol. 101, No. 3, pp. 1024–1038, June 2011, doi: 10.1785/0120100190 A New Analysis of the Magnitude of the February 1663 Earthquake at Charlevoix, Quebec by John E. Ebel Abstract This paper presents a new and comprehensive analysis of the magnitude of the 1663 Charlevoix, Quebec, earthquake. Based on a modified Mercalli intensity scale (MMI) of about VI from reports of damage to chimneys and a masonry wall in Roxbury and Boston, Massachusetts, the best estimate of the moment magnitude of this earthquake is M 7.3 to 7.9 from MMI attenuation relations.
    [Show full text]
  • Relationship Between Structures, Stress and Seismicity in The
    JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, 1 Relationship between structures, stress and 2 seismicity in the Charlevoix seismic zone revealed by 3 3-D geomechanical models: Implications for the 4 seismotectonics of continental interiors A. F. Baird, S. D. McKinnon, and L. Godin 5 Department of Geological Sciences and Geological Engineering, Queen's 6 University, Kingston, Ontario, Canada A. F. Baird, L. Godin, and S. D. McKinnon, Department of Geological Sciences and Geological Engineering, Queen's University, Kingston, Ontario, Canada K7L 3N6. ([email protected]; [email protected]; [email protected]) D R A F T July 11, 2010, 11:16am D R A F T X - 2 BAIRD ET AL.: STRUCTURES, STRESS AND SEISMICITY IN THE CSZ 7 Abstract. The Charlevoix seismic zone in the St. Lawrence valley of Qu´ebec 8 is the most active in eastern Canada. The structurally complex region com- 9 prises a series of subparallel steeply dipping Iapetan rift faults, superimposed 10 by a 350 Ma meteorite impact structure, resulting in a heavily faulted vol- 11 ume. The elongate seismic zone runs through the crater parallel to the rift. 12 Most large events localize outside the crater and are consistent with slip along 13 the rift faults, whereas background seismicity primarily occurs within the 14 volume of rock bounded by the rift faults within and beneath the crater. The 15 interaction between rift and crater faults is explored using the three-dimensional 16 stress analysis code FLAC3D. The rift faults are represented by frictional 17 discontinuities and the crater by a bowl-shaped elastic volume of reduced 18 modulus.
    [Show full text]
  • Earthquake Hazard and Emergency Management Session 3
    Session 3: Distribution of Earthquakes Session No. 3 Course Title: Earthquake Hazard and Emergency Management Session 3: Distribution of Earthquakes Author: James R. Martin, II Time: 90 minutes Objectives: 3.1 Identify the three primary “belts” where most earthquakes occur worldwide. 3.2 Identify regions of the United States where earthquakes tend to occur and explain the primary fault systems/mechanisms for earthquakes in each region. 3.3 Recognize the national seismic hazard maps, identify where they can be obtained, and explain what information is presented on these maps. Scope: During this session, the instructor will present the major plate boundary systems, and discuss the locations of earthquakes worldwide. The instructor will then focus on specific regions of the U.S. where earthquakes are prone to occur. The instructor should present and discuss the national seismic hazard maps and tie in the fact that the hazard maps reflect in scientific terms the information presented in the first part of the lecture. The instructor should explain the maps in general terms and discuss how they were developed, but the technical details of how the maps were developed and how the various maps are specifically used in engineering design is beyond the scope of this class. A suggested student exercise involves an in-class discussion (about 10 -15 minutes) on the concepts of probability and risk and the U.S. seismic hazard maps. This information is important to cover in this class because the basis of seismic hazard assessment in the U.S., including all building codes, is based on the government’s probabilistic seismic hazard assessments displayed on these maps.
    [Show full text]
  • Strong Ground Motion
    The Lorna Prieta, California, Earthquake of October 17, 1989-Strong Ground Motion ROGER D. BORCHERDT, Editor STRONG GROUND MOTION AND GROUND FAILURE Thomas L. Holzer, Coordinator U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 1551-A UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1994 U.S. DEPARTMENT OF THE INTERIOR BRUCE BABBITT, Secretary U.S. GEOLOGICAL SURVEY Gordon P. Eaton, Director Any use of trade, product, or firm names in this publication is for descriptive purposes only and does not imply endorsement by the U.S. Government. Manuscript approved for publication, October 6, 1993 Text and illustrations edited by George A. Havach Library of Congress catalog-card No. 92-32287 For sale by U.S. Geological Survey, Map Distribution Box 25286, MS 306, Federal Center Denver, CO 80225 CONTENTS Page A1 Strong-motion recordings ---................................. 9 By A. Gerald Brady and Anthony F. Shakal Effect of known three-dimensional crustal structure on the strong ground motion and estimated slip history of the earthquake ................................ 39 By Vernon F. Cormier and Wei-Jou Su Simulation of strong ground motion ....................... 53 By Jeffry L. Stevens and Steven M. Day Influence of near-surface geology on the direction of ground motion above a frequency of 1 Hz----------- 61 By John E. Vidale and Ornella Bonamassa Effect of critical reflections from the Moho on the attenuation of strong ground motion ------------------ 67 By Paul G. Somerville, Nancy F. Smith, and Robert W. Graves Influences of local geology on strong and weak ground motions recorded in the San Francisco Bay region and their implications for site-specific provisions ----------------- --------------- 77 By Roger D.
    [Show full text]
  • United States Department of the Interior Geological Survey
    UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY NATIONAL EARTHQUAKE HAZARDS REDUCTION PROGRAM, SUMMARIES OF TECHNICAL REPORTS VOLUME XXIII Prepared by Participants in NATIONAL EARTHQUAKE HAZARDS REDUCTION PROGRAM October 1986 OPEN-FILE REPORT 87-63 This report is preliminary and has not been reviewed for conformity with U.S.Geological Survey editorial standards Any use of trade name is for descriptive purposes only and does not imply endorsement by the USGS. Menlo Park, California 1986 UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY NATIONAL EARTHQUAKE HAZARDS REDUCTION PROGRAM, SUMMARIES OF TECHNICAL REPORTS VOLUME XXIII Prepared by Participants in NATIONAL EARTHQUAKE HAZARDS REDUCTION PROGRAM Compiled by Muriel L. Jacobson Thelma R. Rodriguez The research results described in the following summaries were submitted by the investigators on May 16, 1986 and cover the 6-months period from May 1, 1986 through October 31, 1986. These reports include both work performed under contracts administered by the Geological Survey and work by members of the Geological Survey. The report summaries are grouped into the three major elements of the National Earthquake Hazards Reduction Program. Open File Report No. 87-63 This report has not been reviewed for conformity with USGS editorial standards and stratigraphic nomenclature. Parts of it were prepared under contract to the U.S. Geological Survey and the opinions and conclusions expressed herein do not necessarily represent those of the USGS. Any use of trade names is for descriptive purposes only and does not imply endorsement by the USGS. The data and interpretations in these progress reports may be reevaluated by the investigators upon completion of the research.
    [Show full text]
  • SEISMOLOGICAL SOCIETY of AMERICA 94Th ANNUAL MEETING
    SEISMOLOGICAL SOCIETY OF AMERICA 94th ANNUAL MEETING May 3-5, 1998 (Monday-Wednesday) Northwest Rooms, Seattle Center Seattle, Washington, USA For Current Information: WWW: http://www.geophys.washington.edu/SEIS/SSA99/ Email: [email protected] Important Dates Program/Abstracts on WWW: March 15, 1999 Hotel Reservation Cutoff: March 31, 1999 Preregistration Deadline: April 16, 1999 MEETING CHAIRMAN MEETING INFORMATION Steve Malone Meeting Committee University of Washington Ken Creager, Bob Crosson, Ruth Ludwin, Tony Qamar, Bill Geophysics Program, Box 351650 Steele Seattle, WA 98195-1650 Email for general business and info: ssa99@geophys. Telephone: (206) 685-3811 washington.edu Fax: (206) 543-0489 Email: [email protected] Registration Information The registration form is in this issue of SRL on page 194 and EXHIBITS is available via the WWW at http://mail.seismosoc.org/ ssa99_Reg.html. Ruch Ludwin, telephone: (206) 543-4292 Fax: (206) 543-0489 Meeting Location Email: [email protected] The meeting will be held in the Northwest Rooms at Seattle Center, adjacent to the Key Arena and a shorr walk from the PROGRAM COMMITTEE Space Needle and monorail terminal. The icebreaker on Sunday evening will be held at the Best Western Executive Bob Crosson, telephone: (206) 543-6505 Inn. The luncheon, at the Space Needle, will be held on Email: [email protected] Tuesday, May 4. Ken Creager, telephone: (206) 685-2803 PLANNED SCHEDULE Email: [email protected] Sunday, May 2 Registration: 4:30-7:00 PM, Best
    [Show full text]
  • Seismicity Processes in the Charlevoix Seismic Zone, Eastern Canada
    Western University Scholarship@Western Electronic Thesis and Dissertation Repository 10-16-2014 12:00 AM Seismicity Processes in the Charlevoix Seismic Zone, Eastern Canada Azadeh Fereidoni The University of Western Ontario Supervisor Dr. Gail Atkinson The University of Western Ontario Graduate Program in Geophysics A thesis submitted in partial fulfillment of the equirr ements for the degree in Doctor of Philosophy © Azadeh Fereidoni 2014 Follow this and additional works at: https://ir.lib.uwo.ca/etd Part of the Geophysics and Seismology Commons Recommended Citation Fereidoni, Azadeh, "Seismicity Processes in the Charlevoix Seismic Zone, Eastern Canada" (2014). Electronic Thesis and Dissertation Repository. 2515. https://ir.lib.uwo.ca/etd/2515 This Dissertation/Thesis is brought to you for free and open access by Scholarship@Western. It has been accepted for inclusion in Electronic Thesis and Dissertation Repository by an authorized administrator of Scholarship@Western. For more information, please contact [email protected]. SEISMICITY PROCESSES IN THE CHARLEVOIX SEISMIC ZONE, EASTERN CANADA (Thesis format: Integrated Article) by Azadeh Fereidoni Graduate Program in Geophysics A thesis submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy The School of Graduate and Postdoctoral Studies The University of Western Ontario London, Ontario, Canada © Azadeh Fereidoni 2014 Abstract The Charlevoix Seismic Zone (CSZ) is the most seismically active region in eastern Canada, based on the historical and current rate of activity. Several papers contend that the current seismicity in the CSZ represents long-lived aftershock sequences of the 1663 M~7 earthquake, in which the aftershock activity has persisted for hundreds of years.
    [Show full text]
  • The Applicability of Modern Methods of Earthquake Location
    Ó Birkha¨user Verlag, Basel, 2006 Pure appl. geophys. 163 (2006) 351–372 0033–4553/06/030351–22 Pure and Applied Geophysics DOI 10.1007/s00024-005-0019-5 The Applicability of Modern Methods of Earthquake Location 1,2 1 1 1 PAUL G. RICHARDS, FELIX WALDHAUSER, DAVID SCHAFF, and WON-YOUNG KIM Abstract—We compare traditional methods of seismic event location, based on phase pick data and analysis of events one-at-a-time, with a modern method based on cross-correlation measurements and joint analysis of numerous events. In application to four different regions representing different types of seismicity and monitored with networks of different station density, we present preliminary results indicating what fraction of seismic events may be amenable to analysis with modern methods. The latter can supply locations ten to a hundred times more precise than traditional methods. Since good locations of seismic sources are needed as the starting point for so many user communities, and potentially can be provided due to current improvements in easily-accessible computational capability, we advocate wide- scale application of modern methods in the routine production of bulletins of seismicity. This effort requires access to waveform archives from well-calibrated stations that have long operated at the same location. Key words: Earthquake location, waveform cross correlation, seismicity studies, California earth- quakes, Charlevoix earthquakes, China earthquakes, New Madrid earthquakes. Introduction Seismic events are usually still located one-at-a-time by measuring the arrival times of different seismic signals (phase picks) and then interpreting these observations in terms of the travel times predicted for a standard depth-dependent Earth model.
    [Show full text]
  • Central and Eastern United States Seismic Source
    C Default Source Characteristics for CEUS SSC Project Study Region Table C-5.4 Future Earthquake Characteristics RLME Sources Table C-6.1.1 Charlevoix RLME Table C-6.1.2 Charleston RLME Table C-6.1.3 Cheraw Fault RLME Table C-6.1.4 Oklahoma Aulacogen RLME Table C-6.1.5 Reelfoot Rift–New Madrid Fault System RLMEs Table C-6.1.6 Reelfoot Rift–Eastern Margin Fault RLME Table C-6.1.7 Reelfoot Rift–Marianna RLME Table C-6.1.8 Reelfoot Rift–Commerce Fault Zone RLME Table C-6.1.9 Wabash Valley RLME Seismotectonic Zones Table C-7.3.1 St. Lawrence Rift Zone (SLR) Table C-7.3.2 Great Meteor Hotspot Zone (GMH) Table C-7.3.3 Northern Appalachian Zone (NAP) Table C-7.3.4 Paleozoic Extended Crust Zone (PEZ; narrow [N] and wide [W]) Table C-7.3.5 Illinois Basin-Extended Basement Zone (IBEB) Table C-7.3.6 Reelfoot Rift Zone (RR; including Rough Creek Graben [RR-RCG]) Tables C-7.3.7/7.3.8 Extended Continental Crust Zone–Atlantic Margin (ECC-AM) and Atlantic Highly Extended Crust (AHEX) Tables C-7.3.9/7.3.10 Extended Continental Crust Zone–Gulf Coast (ECC-GC) and Gulf Coast Highly Extended Crust (GHEX) [No Table C-7.3.11] [Oklahoma Aulacogen (OKA); see Table C-6.1.4] Table C-7.3.12 Midcontinent-Craton Zone (MidC) Mmax Zones Criteria for defining the MESE/NMESE boundary for the two-zone alternative are discussed in Section 6.2.2.
    [Show full text]
  • Further Studies on the 1988 MW 5.9 Saguenay, Quebec, Earthquake Sequence
    Canadian Journal of Earth Sciences Further studies on the 1988 MW 5.9 Saguenay, Quebec, earthquake sequence Journal: Canadian Journal of Earth Sciences Manuscript ID cjes-2017-0231.R2 Manuscript Type: Article Date Submitted by the Author: 04-Apr-2018 Complete List of Authors: Ma, Shutian; Carleton University, Earth Sciences Motazedian, Dariush; Carleton University, Earth Sciences Lamontagne, Maurice; Natural Resources Canada, Geological Survey of Canada Draft Keyword: Saguenay earthquake, rupture plane, relocation, depth phase, aftershocks Is the invited manuscript for consideration in a Special N/A Issue? : https://mc06.manuscriptcentral.com/cjes-pubs Page 1 of 41 Canadian Journal of Earth Sciences 1 Further studies on the 1988 MW 5.9 Saguenay, Quebec, 2 earthquake sequence 3 4 5 6 Shutian Ma1, Dariush Motazedian2, Maurice Lamontagne3 7 8 9 (1)Department of Earth Sciences, Carleton University 10 1125 Colonel By Drive 11 Ottawa, Ontario, K1S 5B6, Canada 12 [email protected] Draft 13 (S.M.) 14 15 (2)Department of Earth Sciences, Carleton University 16 1125 Colonel By Drive 17 Ottawa, Ontario, K1S 5B6, Canada 18 [email protected] 19 (D.M.) 20 21 (3)Geological Survey of Canada 22 Natural Resources Canada, 601 Booth St, 23 Ottawa, Ontario, K1A 0E8, Canada 24 [email protected] 25 (M.L.) 26 1 https://mc06.manuscriptcentral.com/cjes-pubs Canadian Journal of Earth Sciences Page 2 of 41 27 28 Abstract: 29 Many small earthquakes occur annually in Eastern Canada, but moderate to 30 strong earthquakes are infrequent. The 25 November 1988 MW 5.9 Saguenay 31 mainshock remains the largest earthquake in the last 80 years in eastern North 32 America.
    [Show full text]