Revision of Time-Independent Probabilistic Seismic Hazard Maps for Alaska

Boyd, Oliver S.; Mueller, Charles S.; Bufe, Charles G.; Frankel, Arthur; Petersen, Mark D.

doi:10.3133/ofr20071043

Cited by 50 publications

(46 citation statements)

References 24 publications

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“…Previous studies of Quaternary faults and ridge spreading rates provide additional strain rate and style constraints (Fig. 1B;Plafker et al, 1994;Lundgren et al, 1995;Matmon et al, 2006;Leonard et al, 2007;Wesson et al, 2007;Carver and Plafker, 2008;Kalbas et al, 2008;Fig. DR1; Table DR2).…”

Section: Kinematic Model Parametersmentioning

confidence: 98%

Kinematics of a diffuse North America–Pacific–Bering plate boundary in Alaska and western Canada

Finzel

Flesch

Ridgway

2011

Geology

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Inconsistencies between regional seismicity and block tectonic models, the recent recognition of the Bering plate, and the availability of global positioning system data motivated a large-scale kinematic analysis of Alaska and western Canada. We provide a synoptic view of the neotectonics of the region through kinematic modeling of the longterm strain rate and velocity fi eld constrained by geologic and geophysical observations. Our results provide evidence that a wide zone of diffuse deformation defi nes the boundaries between the North America, Pacifi c, and Bering plates, and that the relative motion between these plates may be the source for much of the modern deformation.

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Section: Kinematic Model Parametersmentioning

confidence: 98%

Kinematics of a diffuse North America–Pacific–Bering plate boundary in Alaska and western Canada

Finzel

Flesch

Ridgway

2011

Geology

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“…Since publication of the seminal paper (Atwater, 1987), and widespread adoption of well-tested field and analytical methods (e.g. Atwater and Hemphill-Haley, 1997;Hayward et al, 2006;Kelsey, 2015;Nelson, 2015;Nelson et al, 1996;Witter, 2015) debate moved on to questions critical for hazard assessment, emergency planning and international building code design (Mueller et al, 2015;Wesson et al, 2007). Key questions include the extent of past great earthquake ruptures (a proxy for magnitude), the identification of the boundaries between rupture segments, the persistence of these boundaries over multiple earthquake cycles, recurrence intervals of great earthquakes in each segment, the role of aseismic slip, and whether segments of plate boundaries that are currently creeping can generate great earthquakes Goldfinger et al, 2012;Hayward et al, 2015;Kelsey et al, 2015;Mueller et al, 2015;Scholz, 2014;Witter et al, 2014).…”

Section: Introduction and Structure Of The Papermentioning

confidence: 99%

Detection limits of tidal-wetland sequences to identify variable rupture modes of megathrust earthquakes

Shennan

Garrett

Barlow

2016

Quaternary Science Reviews

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Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. earthquakes. We conclude that coastal paleoseismological studies benefit from a methodological framework that employs rigorous evaluation of five essential criteria and a sixth which may be very robust but only occur at some sites: 1 -lateral extent of peat-mud or mud-peat couplets with sharp contacts; 2 -suddenness of submergence or emergence, and replicated within each site; 3 -amount of vertical motion, quantified with 95% error terms and replicated within each site; 4 -syncroneity of submergence and emergence based on statistical age modelling; 5 -spatial pattern of submergence and emergence; 6 -possible additional evidence, such as evidence of a tsunami or liquefaction concurrent with submergence or emergence. We suggest that it is possible to consider detection limits as low as 0.1 to 0.2 m coseismic vertical change. Introduction and structure of the paperCoastal paleoseismology provides critical information that helps to improve understanding and modelling of seismic hazards, including associated tsunami, at all major subduction zones. Key contributions to practical earthquake hazard assessment include the identification of great (magnitude 8 or 9) earthquakes during the Holocene where there is no historical record (Atwater, 1987); earthquakes of substantially greater magnitude than directly observed (Minoura et al., 2001;Sawai et al., 2008); estimating recurrence intervals of great earthquakes (Atwater and HemphillHaley, 1997;Nelson et al., 1995); and defining different patterns of rupture along a subduction zone (Cisternas et al., 2005;Kelsey et al., 2002;Nelson et al., 2006;Sawai et al., 2004). Since publication of the seminal paper (Atwater, 1987), and widespread adoption of well-tested field and analytical methods (e.g. Atwater and Hemphill-Haley, 1997;Hayward et al., 2006;Kelsey, 2015;Nelson, 2015;Nelson et al., 1996;Witter, 2015) debate moved on to questions critical for hazard assessment, emergency planning and international building code design (Mueller et al., 2015;Wesson et al., 2007). Key questions include the extent of past great earthquake ruptures (a proxy for magnitude), the identification of the boundaries between rupture segments, the persistence of these boundaries over multiple earthquake cycles, recurrence intervals of great earthquakes in each segment, the role of aseismic slip, and whether segments of plate boundaries that are currently creeping can generate great earthquakes Goldfinger et al., 2012;Hayward et al., 2015;Kelsey et al., 2015;Mueller...

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“…In our study we proposed 2 segment boundaries for seismic hazard and risk modeling in Central and Eastern AlaskanAleutian subduction zone. In contract, the USGS uses 4 segment boundaries in this region (Wesson, 2007), which we believe underestimates the potential for large magnitude (8+) events in the Semidi and Shumagin segments. Our methods also have the advantage of being repeatable, as additional earthquake data becomes available.…”

Section: Alternative Segmentation Methods For Subduction Zones: An Almentioning

confidence: 99%

Proceedings of the 11th United States-Japan natural resources panel for earthquake research, Napa Valley, California, November 16–18, 2016

Detweiler¹,

Pollitz²

2017

Open-File Report

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For more information on the USGS-the Federal source for science about the Earth, its natural and living resources, natural hazards, and the environment-visit https://www.usgs.gov/ or call 1-888-ASK-USGS (1-888-275-8747).For an overview of USGS information products, including maps, imagery, and publications, visit https://store.usgs.gov.Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.Although this information product, for the most part, is in the public domain, it also may contain copyrighted materials as noted in the text. Permission to reproduce copyrighted items must be secured from the copyright owner.The abstracts by non-U.S. Geological Survey (USGS) authors in this volume are published as they were submitted. Abstracts authored entirely by non-USGS authors do not represent the views or position of the USGS or the U.S. Government and are published solely as part of this volume.Suggested citation: Detweiler, S., and Pollitz, F., eds., 2017, Proceedings of the 11th United States-Japan natural resources panel for earthquake research, Napa Valley, California, November 16-18, 2016: U.S. Geological Survey Open-File Report 2017-1133, 147 p., https://doi.org/10.3133/ofr20171133. ISSN 2331ISSN -1258 iii Abstracts of the following presentations were not received for inclusion in this report: Gerald Bawden "NISAR-NASA and ISRO Synthetic Aperture Radar Mission Overview of the mission and science objectives" Gerald Bawden "Development of a GNSS-Enhanced Tsunami Early Warning System" Tom Jordan "CISM earthquake forecasting activities" Ben Brooks "Internet of Things Earthquake Early Warning" Contents Resolution of the Eleventh Joint Meeting of the United States-Japan Panel on Earthquake Research (UJNR), November 2016The UJNR Panel on Earthquake Research promotes advanced research toward a more fundamental understanding of the earthquake process and hazard estimation. The Eleventh Joint meeting was extremely beneficial in furthering cooperation and deepening understanding of problems common to both Japan and the United States.The meeting included productive exchanges of information on approaches to systematic observation and modeling of earthquake processes. Regarding the earthquake and tsunami of March 2011 off the Pacific coast of Tohoku and the 2016 Kumamoto earthquake sequence, the Panel recognizes that further efforts are necessary to achieve our common goal of reducing earthquake risk through close collaboration and focused discussions at the 12th UJNR meeting. We look forward to continued cooperation on issues involving the densification of observation networks and the open exchange of data among scientific communities. We recognize the importance of making information publicly available in a timely manner. We also recognize the importance of information exchange on research policy and strategies, including the frameworks of research organizations. Areas of CooperationSpecific areas of earthquake research where cooperative research b...

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Revision of Time-Independent Probabilistic Seismic Hazard Maps for Alaska

Cited by 50 publications

References 24 publications

Kinematics of a diffuse North America–Pacific–Bering plate boundary in Alaska and western Canada

Kinematics of a diffuse North America–Pacific–Bering plate boundary in Alaska and western Canada

Detection limits of tidal-wetland sequences to identify variable rupture modes of megathrust earthquakes

Proceedings of the 11th United States-Japan natural resources panel for earthquake research, Napa Valley, California, November 16–18, 2016

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