Seismicity, Seismotectonics and Preliminary Earthquake Hazard Analysis of the Teton Region, WY
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U.S. G Eolo:.:Jical. Survey
Pierce and Colman: Submerged Shorelines of Jackson Lake, Wyoming: Do They Exist and SUBMERGED SHORELINES OF JACKSON LAKE, WYOMING: DO THEY EXIST AND DEFINE POSTGLACIAL DEFORMATION ON THE TETON FAULT Kenneth L. Pierce u.s. Geolo:.:Jical. Survey Denver, co Steven M. Colman u.s. Geological Survey Woods Hole, M A Obj::ctives The Teton fault is one of the moot active normal faults in the world, as attested by the precipitous high front of the Teton Range. After deglaciation of northern Jackson Hole arout 15,000 years ago (Parter and others, 1983), offset on the Teton fault eouthwest of Jackoon Lake has tntaled 19-24 m (60-80 feet) (Gilbert and others, 1983). In less than the last 9 million years, offset on the Teton fault has tntaled from 7,500 to 9,000 meters (Love and Reed, 1971). Figure 1 shows how downdropping on the Teton fault results in tilting of Jacks::>n HoJe towards the fault. Submerged paJ.eoohorel:ines of Jackoon Lake may record this downdropping and tilt because the level of Jackoon Lake is controlled by both the furtui.tous ,{X)Sition of the Jake ootlet and the immediate downstream course of the Snake River (Figure 1). The ootlet of Jackson Lake is 12 km east of the fault and from there the Snake River has a very low gradient to a bedrock threshold 6 km further east. Thus the level of Jackson Lake is controlled by the bed of the river east of the hinge line of tiJ.ting (Figure 1). The postglacial history of movement on the Teton fault may thus be recorded by paJ.eoohorelines submerged OOJ.ow the level of the pre-dam Jake. -
Chapter 2 the Evolution of Seismic Monitoring Systems at the Hawaiian Volcano Observatory
Characteristics of Hawaiian Volcanoes Editors: Michael P. Poland, Taeko Jane Takahashi, and Claire M. Landowski U.S. Geological Survey Professional Paper 1801, 2014 Chapter 2 The Evolution of Seismic Monitoring Systems at the Hawaiian Volcano Observatory By Paul G. Okubo1, Jennifer S. Nakata1, and Robert Y. Koyanagi1 Abstract the Island of Hawai‘i. Over the past century, thousands of sci- entific reports and articles have been published in connection In the century since the Hawaiian Volcano Observatory with Hawaiian volcanism, and an extensive bibliography has (HVO) put its first seismographs into operation at the edge of accumulated, including numerous discussions of the history of Kīlauea Volcano’s summit caldera, seismic monitoring at HVO HVO and its seismic monitoring operations, as well as research (now administered by the U.S. Geological Survey [USGS]) has results. From among these references, we point to Klein and evolved considerably. The HVO seismic network extends across Koyanagi (1980), Apple (1987), Eaton (1996), and Klein and the entire Island of Hawai‘i and is complemented by stations Wright (2000) for details of the early growth of HVO’s seismic installed and operated by monitoring partners in both the USGS network. In particular, the work of Klein and Wright stands and the National Oceanic and Atmospheric Administration. The out because their compilation uses newspaper accounts and seismic data stream that is available to HVO for its monitoring other reports of the effects of historical earthquakes to extend of volcanic and seismic activity in Hawai‘i, therefore, is built Hawai‘i’s detailed seismic history to nearly a century before from hundreds of data channels from a diverse collection of instrumental monitoring began at HVO. -
Systematic Variation of Late Pleistocene Fault Scarp Height in the Teton Range, Wyoming, USA: Variable Fault Slip Rates Or Variable GEOSPHERE; V
Research Paper THEMED ISSUE: Cenozoic Tectonics, Magmatism, and Stratigraphy of the Snake River Plain–Yellowstone Region and Adjacent Areas GEOSPHERE Systematic variation of Late Pleistocene fault scarp height in the Teton Range, Wyoming, USA: Variable fault slip rates or variable GEOSPHERE; v. 13, no. 2 landform ages? doi:10.1130/GES01320.1 Glenn D. Thackray and Amie E. Staley* 8 figures; 1 supplemental file Department of Geosciences, Idaho State University, 921 South 8th Avenue, Pocatello, Idaho 83209, USA CORRESPONDENCE: thacglen@ isu .edu ABSTRACT ously and repeatedly to climate shifts in multiple valleys, they create multi CITATION: Thackray, G.D., and Staley, A.E., 2017, ple isochronous markers for evaluation of spatial and temporal variation of Systematic variation of Late Pleistocene fault scarp height in the Teton Range, Wyoming, USA: Variable Fault scarps of strongly varying height cut glacial and alluvial sequences fault motion (Gillespie and Molnar, 1995; McCalpin, 1996; Howle et al., 2012; fault slip rates or variable landform ages?: Geosphere, mantling the faulted front of the Teton Range (western USA). Scarp heights Thackray et al., 2013). v. 13, no. 2, p. 287–300, doi:10.1130/GES01320.1. vary from 11.2 to 37.6 m and are systematically higher on geomorphically older In some cases, faults of known slip rate can also be used to evaluate ages landforms. Fault scarps cutting a deglacial surface, known from cosmogenic of glacial and alluvial sequences. However, this process is hampered by spatial Received 26 January 2016 Revision received 22 November 2016 radionuclide exposure dating to immediately postdate 14.7 ± 1.1 ka, average and temporal variability of offset along individual faults and fault segments Accepted 13 January 2017 12.0 m in height, and yield an average postglacial offset rate of 0.82 ± 0.13 (e.g., Z. -
Seismotectonics of the April 25, 1992, Petrolia Earthquake and The
TECTONICS, VOL. 14, NO. 5, PAGES, 1095-1103,OCTOBER 1995 Seismotectonicsof the April 25, 1992, Petrolla earthquake and the Mendocino triple junction region Yuichiro Tanioka, Kenji Satake,and Larry Ruff Departmentof GeologicalSciences, University of Michigan, Ann Arbor Abstract. The April 25, 1992, Petrolia earthquake(Ms 7.1) 124ø34.47'W.The parametersof the secondaftershock (AF2) are occurredat the southerntip of the Cascadiasubduction zone. origin time 11:18:25.8 (GMT); location, 40ø23.40'N, This is thelargest thrust earthquake ever recorded instrumentally 124ø34.30'W.These earthquakes occurred near Cape Mendocino, in the Cascadiasubduction zone. The earthquakewas followed where the Pacific, North American, and Gorda plates meet by two large strike-slip aftershocks(both Ms 6.6). Moment (Figure 1). The Gorda plate is the southernpart of the Juan de releaseof eachof theearthquakes is as follows: 4.0 x 1019Nm in Fuca plate, south of the Blanco Fracture Zone. In order to the first 10 s for themainshock, 0.7 x 1019Nm in the first 8 s for explain the spaceproblem betweenthe Blanco FractureZone in the first aftershock,and 0.9 x 1019Nm in the first 2 s for the the north and the Mendocino Fault Zone in the south, Wilson second aftershock. These indicate that the mainshock and each of [1986] claimed that the Gorda plate is not a rigid plate and the aftershocksmay have different tectonicbackgrounds. The deforms internally. He called it the Gorda deformation zone bestdepth estimates of the mainshockand the two aftershocksare (GDZ). Seismicitystudies by Smithand Knapp [1980] andSmith 14 km, 18 km, and 24 km, respectively.The slip directionof the eta/. -
Snake River Flow Augmentation Impact Analysis Appendix
SNAKE RIVER FLOW AUGMENTATION IMPACT ANALYSIS APPENDIX Prepared for the U.S. Army Corps of Engineers Walla Walla District’s Lower Snake River Juvenile Salmon Migration Feasibility Study and Environmental Impact Statement United States Department of the Interior Bureau of Reclamation Pacific Northwest Region Boise, Idaho February 1999 Acronyms and Abbreviations (Includes some common acronyms and abbreviations that may not appear in this document) 1427i A scenario in this analysis that provides up to 1,427,000 acre-feet of flow augmentation with large drawdown of Reclamation reservoirs. 1427r A scenario in this analysis that provides up to 1,427,000 acre-feet of flow augmentation with reservoir elevations maintained near current levels. BA Biological assessment BEA Bureau of Economic Analysis (U.S. Department of Commerce) BETTER Box Exchange Transport Temperature Ecology Reservoir (a water quality model) BIA Bureau of Indian Affairs BID Burley Irrigation District BIOP Biological opinion BLM Bureau of Land Management B.P. Before present BPA Bonneville Power Administration CES Conservation Extension Service cfs Cubic feet per second Corps U.S. Army Corps of Engineers CRFMP Columbia River Fish Mitigation Program CRP Conservation Reserve Program CVPIA Central Valley Project Improvement Act CWA Clean Water Act DO Dissolved Oxygen Acronyms and Abbreviations (Includes some common acronyms and abbreviations that may not appear in this document) DREW Drawdown Regional Economic Workgroup DDT Dichlorodiphenyltrichloroethane EIS Environmental Impact Statement EP Effective Precipitation EPA Environmental Protection Agency ESA Endangered Species Act ETAW Evapotranspiration of Applied Water FCRPS Federal Columbia River Power System FERC Federal Energy Regulatory Commission FIRE Finance, investment, and real estate HCNRA Hells Canyon National Recreation Area HUC Hydrologic unit code I.C. -
Lake Drawdown Workshop, June 2004, AMK Ranch, Grand Teton NP
Lake Drawdown Workshop, June 2004, AMK Ranch, Grand Teton NP Attendees: Susan O’Ney Hank Harlow Sue Consolo-Murphy Melissa Tramwell John Boutwell Darren Rhea Ralph Hudelson Steve Cain Kathy Gasaway Jim Bellamy Bill Gribb Nick Nelson Bruce Pugesek Dick Bauman Mike Beus Aida Farag Objectives • Research priorities for Jackson Lake • BOR will aid in funding top priority project(s) • List of those best qualified to help accomplish tasks. Mike Beus - The History, Water Rights and Reclamation Authorities of Jackson LakeDam. • 10 million acre feet to irrigation, 5 million crosses Wyoming border • Input to Jackson Lake just shy of 1 million acre feet • Majority of water from natural river flow • How does BOR operate Jackson Lake? o History of western water rights o History of Reclamation o Specific project authorizations o Spaceholder repayment contracts o Flood Control Acts • Nine reservoirs: Henry’s Lake, Island Park, Grassy Lake, Jackson Lake, Ririe, Palisades, American Falls, Lake Wolcott, Milner • Corps of Engineers are responsible for flood control under Section 7. • Reclamation law recognizes State as regulator of water • How can irrigators take water from National Parks? o Reclamation’s right to fill Jackson Lake is based on irrigators beneficial use. o Irrigators paid for construction of Jackson Lake Dam. o Congress protected Jackson Lake for reclamation purposes • Is agency looking for any ecological or biological information to document water flows? o Augmentation or lease may affect Jackson Lake at some point in time. o Endangered Species Act has “trumped out” biological and ecological issues (with respect to Missouri River) Hank Harlow - a short overview of different projects, to include work on lake drawdown by Carol Brewer and otter activity by Joe Hall. -
January 2019 Water Supply Briefing 2018 Regional Summary and 2019 ESP Forecast
January 2019 Water Supply Briefing 2018 Regional Summary and 2019 ESP Forecast Telephone Conference : 1-415-655-0060 Pass Code : 217-076-304 2019 Briefing Dates: Jan 3 – 10am Pacific Time Federal Government Shutdown Feb 7 - 10am Pacific Time March 7 - 10am Pacific Time NWRFC services are necessary to protect April 4 - 10am Daylight Savings Time lives and property and will continue May 2 - 10am Daylight Savings Time uninterrupted throughout the current June 6 - 10am Daylight Savings Time partial federal government shutdown. Kevin Berghoff, NWRFC National Weather Service/Northwest River Forecast Center [email protected] (503)326-7291 Water Supply Forecast Briefing Outline . Review of WY2018 Water Supply Season . Observed Conditions WY2019: . Precipitation . Temperature Hydrologic model . Snowpack states . Runoff . Future Conditions for WY2019: . 10 days of quantitative forecast precipitation (QPF) . 10 days of quantitative forecast temperature (QTF) Climate . Historical climate forcings appended thereafter Forcings . Climate Outlook . Summary Observed Seasonal Precipitation Water Year 2017/2018 Comparison 2017wy 2018wy DIVISION NAME % Norm % Norm Columbia R abv 103 94 Grand Coulee Snake R abv 124 81 Hells Canyon Columbia R abv 108 89 The Dalles Observed %Normal Monthly Precipitation Water Year 2018 Upr Columbia Precip %Normal – WY2018 Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep WY2018 Clark Fork River Basin 81 121 133 82 175 79 127 102 139 4 49 25 100 Flathead River Basin 115 123 99 110 207 76 135 74 77 16 37 20 96 Kootenai River -
Minidoka Project Reservoirs Store Flow of the Snake Snake the of Flow Store Reservoirs Project Minidoka Many Benefits Benefits Many
September 2010 2010 September 0461 0461 - 678 (208) Office Field Snake Upper www.usbr.gov/pn the American public. public. American the economically sound manner in the interest of of interest the in manner sound economically related resources in an environmentally and and environmentally an in resources related develop, and protect water and and water protect and develop, clamation is to manage, manage, to is clamation Re of The mission of the Bureau Bureau the of mission The Recreation: over 674,000 visits - $25 million million $25 - visits 674,000 over Recreation: Flood damage prevented: $8.8 million million $8.8 prevented: damage Flood Power generated: $5.6 million million $5.6 generated: Power Livestock industry: $342 million million $342 industry: Livestock IDAHO–WYOMING IDAHO–WYOMING Irrigated crops: $622 million million $622 crops: Irrigated What’s the Yearly Value? Value? Yearly the What’s Project Project the West. West. the Minidoka Minidoka some of the best outdoor recreation opportunities in in opportunities recreation outdoor best the of some also provides fish and wildlife enhancement and and enhancement wildlife and fish provides also The Story of the the of Story The production, and to reduce flood damage. The project project The damage. flood reduce to and production, River system for later irrigation use, electricity electricity use, irrigation later for system River Minidoka Project reservoirs store flow of the Snake Snake the of flow store reservoirs Project Minidoka Many Benefits Benefits Many Congress passed the Reclamation Act in 1902 to storing project water. The 1911 permanent dam was Railroad Draws Settlers bring water to the arid West. -
Grand Teton National Park Geologic Resource Evaluation Scoping Report
Grand Teton National Park Geologic Resource Evaluation Scoping Report Sid Covington and Melanie V. Ransmeier Geologic Resources Division Denver, Colorado August 22, 2005 Table of Contents Executive Summary........................................................................................................ ii Introduction..................................................................................................................... 1 Geologic Setting.............................................................................................................. 2 Geologic History............................................................................................................. 4 Significant Geologic Resource Management Issues....................................................... 7 Earthquake Hazard Assessment and Planning............................................................ 7 Fluvial Geomorphology.............................................................................................. 8 Glacial and Peri-glacial Monitoring............................................................................ 9 Cave and Karst Resources ........................................................................................ 10 Hydrothermal Features.............................................................................................. 10 Wetlands ................................................................................................................... 11 Oil and Gas Development........................................................................................ -
Earthquakes in Wyoming
111˚ Additional information on earthquakes, earthquake preparedness, 110˚ 104˚ Introduction 109˚ 108˚ 107˚ 106˚ 105˚ 45˚ 45˚ and earthquake response can be obtained from: Yellowstone Earthquakes are common in Wyoming. National WYOMING STATE Park Historically, earthquakes have occurred in Sheridan Wyoming State Geological Survey Crook GEOLOGICAL SURVEY every county in Wyoming over the past 120 P.O. Box 3008 Park Bighorn �� ���� years, with some causing significant damage. Laramie, WY 82071-3008 �� �� Lance Cook, State Geologist �� � Campbell Phone: (307) 766-2286 � Figure 1 shows the generalized distribution of Johnson 44˚ 44˚ historical earthquakes in Wyoming. Washakie Fax: (307) 766-2605 � � � Teton Weston � ���� � Email: [email protected] � �� The first recorded earthquake in the ������ �� Hot Springs [email protected] state occurred in the area now known as Agency Web: http://wsgsweb.uwyo.edu EARTHQUAKES IN Yellowstone National Park on July 20, 1871. Earthquake Web: http://www.wrds.uwyo.edu During the early geologic investigations of WYOMING Yellowstone, Ferdinand V. Hayden of the U.S. Fremont Natrona Niobrara 43˚ Converse 43˚ Wyoming Emergency Management Agency Geological Survey reported that “on the night 5500 Bishop Blvd. of the 20th of July, we experienced several se- Sublette Cheyenne, WY 82009-3320 vere shocks of an earthquake, and these were Phone: (307) 777-4900 felt by two other parties, fifteen or twenty-five Fax: (307) 635-6017 miles distant, on different sides of the lake.” Email: [email protected] Platte Goshen Yellowstone National Park is now known as 42˚ 42˚ Agency Web: http://132.133.10.9 one of the more seismically active areas in Lincoln FEMA Web: http://www.fema.gov the United States. -
Deglaciation and Postglacial Environmental Changes in the Teton Mountain Range Recorded at Jenny Lake, Grand Teton National Park, WY
Quaternary Science Reviews 138 (2016) 62e75 Contents lists available at ScienceDirect Quaternary Science Reviews journal homepage: www.elsevier.com/locate/quascirev Deglaciation and postglacial environmental changes in the Teton Mountain Range recorded at Jenny Lake, Grand Teton National Park, WY * Darren J. Larsen , Matthew S. Finkenbinder, Mark B. Abbott, Adam R. Ofstun Department of Geology and Environmental Science, University of Pittsburgh, Pittsburgh, PA 15260, USA article info abstract Article history: Sediments contained in lake basins positioned along the eastern front of the Teton Mountain Range Received 21 September 2015 preserve a continuous and datable record of deglaciation and postglacial environmental conditions. Here, Received in revised form we develop a multiproxy glacier and paleoenvironmental record using a combination of seismic 19 February 2016 reflection data and multiple sediment cores recovered from Jenny Lake and other nearby lakes. Age Accepted 22 February 2016 control of Teton lake sediments is established primarily through radiocarbon dating and supported by Available online xxx the presence of two prominent rhyolitic tephra deposits that are geochemically correlated to the widespread Mazama (~7.6 ka) and Glacier Peak (~13.6 ka) tephra layers. Multiple glacier and climate Keywords: fl Holocene climate change indicators, including sediment accumulation rate, bulk density, clastic sediment concentration and ux, fl d13 d15 Lake sediment organic matter (concentration, ux, C, N, and C/N ratios), and biogenic silica, track changes in Western U.S. environmental conditions and landscape development. Sediment accumulation at Jenny Lake began Deglaciation centuries prior to 13.8 ka and cores from three lakes demonstrate that Teton glacier extents were greatly Grand Teton National Park reduced by this time. -
Basic Seismological Characterization for Sublette County, Wyoming By
Basic Seismological Characterization for Sublette County, Wyoming by James C. Case, Rachel N. Toner, and Robert Kirkwood Wyoming State Geological Survey September 2002 BACKGROUND Seismological characterizations of an area can range from an analysis of historic seismicity to a long-term probabilistic seismic hazard assessment. A complete characterization usually includes a summary of historic seismicity, an analysis of the Seismic Zone Map of the Uniform Building Code, deterministic analyses on active faults, “floating earthquake” analyses, and short- or long- term probabilistic seismic hazard analyses. Presented below, for Sublette County, Wyoming, are an analysis of historic seismicity, an analysis of the Uniform Building Code, deterministic analyses of nearby active faults, an analysis of the maximum credible “floating earthquake”, and current short- and long-term probabilistic seismic hazard analyses. Historic Seismicity in Sublette County The enclosed map of “Earthquake Epicenters and Suspected Active Faults with Surficial Expression in Wyoming” (Case and others, 1997) shows the historic distribution of earthquakes in Wyoming. Eighteen magnitude 2.5 or intensity III and greater earthquakes have been recorded in Sublette County. On October 24, 1936, two earthquakes occurred in western Wyoming. The U.S.G.S. National Earthquake Information Center reported these two intensity III earthquakes as occurring in Sublette County, approximately 3 miles southwest of Cora. The original reference and description of these events, however, indicates that these earthquakes originated in the Star Valley of Lincoln County (Neumann, 1936). In June of 1945, two earthquakes occurred in southwestern Sublette County. These intensity III earthquakes were recorded on June 7, 1945, approximately 4 miles northwest of Calpet, and on June 23, 1945, approximately 3 miles northeast of Calpet.