Characteristics Causes And Implications Of The 1998 Wasatch Front Landslides Utah

Author : Francis X. Ashland
Publisher : Utah Geological Survey
Page : 55 pages
File Size : 44,8 Mb
Release : 2003
Category : Science
ISBN : 9781557916891

Get Book

Characteristics, Causes, and Implications of the 1998 Wasatch Front Landslides, Utah by Francis X. Ashland Pdf

The majority of the 1998 Wasatch Front landslides were likely triggered following a cumulative rise in ground-water levels resulting from four or more successive years of above-normal precipitation. Triggering of landslide movement likely coincided with a transient ground-water-level rise associated with the spring snowmelt and contemporaneous above-normal precipitation. In most Wasatch Front areas, 1998 was the wettest as well as the last year of the precipitation period. An increase in landslide activity began in 1997, following two to four successive years of above-normal precipitation. This study examines the relation between the 1998 landslides and the 1995-98 precipitation period (1993-98 in Spanish Fork Canyon). Accordingly, this study investigates the significance of the most recent precipitation period in relation to the historical precipitation record, and compares it with the 1980-86 period. In addition, other causes of the 1998 landsliding are explored, most importantly hillside modification related to residential development. This study also examines several issues, and their implications, related to the 1998 Wasatch Front landslides including the susceptibility to reactivation of pre-existing landslides, consideration of the state of landslide activity, and the possibility of developing landslide-movement prediction tools based on an instability threshold concept. The majority of the landslides discussed occurred near urbanized areas of the Wasatch Front and consisted of either translational or rotational earth slides in pre-existing landslide areas. The discussion and conclusions are limited to these landslides and locations. The case histories presented provide new data intended to further the understanding of landslide hazards in the Wasatch Front.

Author : Francis X. Ashland,Greg N. McDonald,Lucas M. Shaw,James A. Bay
Publisher : Utah Geological Survey
Page : 36 pages
File Size : 55,5 Mb
Release : 2009-11
Category : Electronic
ISBN : 9781557918222

Get Book

Characterization and Hazard Zonation of the Meadow Creek Landslide Affecting State Route 9, Part of the Coal Hill Landslide Complex, Western Kane County, Utah by Francis X. Ashland,Greg N. McDonald,Lucas M. Shaw,James A. Bay Pdf

This CD contains a 31-page report and two accompanying plates detailing the results of geologic and geophysical investigations of the Meadow Creek landslide in western Kane County, Utah, between October 2005 and June 2007. The roughly 1.7 miles wide by 1.3 miles long Meadow Creek landslide is part of the Coal Hill landslide complex just east of Zion National Park. Recurrent movement of the Meadow Creek landslide affects State Route 9, which provides the only highway access to the east entrance to Zion National Park. This report presents the results of our investigation that includes detailed mapping of landslide features and individual historical landslides within the complex; landslide geometry, including depths from geophysical testing; a road damage inventory; movement amounts and rates from survey-grade GPS monitoring; and distress- and movement-based relative hazard zonation of State Route 9 and the Meadow Creek landslide. The results of this study provide a better understanding of the landslide and its relation to highway distress and aid in assessing the feasibility of mitigation options and predicting future damage. 29 pages + 1 plate

Author : Benni Thiebes
Publisher : Springer Science & Business Media
Page : 272 pages
File Size : 52,6 Mb
Release : 2012-01-21
Category : Nature
ISBN : 9783642275265

Get Book

Landslide Analysis and Early Warning Systems by Benni Thiebes Pdf

Recent landslide events demonstrate the need to improve landslide forecasting and early warning capabilities in order to reduce related risks and protect human lives. In this thesis, local and regional investigations were carried out to analyse landslide characteristics in the Swabian Alb region, and to develop prototypic landslide early warning systems. In the local study area, an extensive hydrological and slope movement monitoring system was installed on a seasonally reactivated landslide body located in Lichtenstein- Unterhausen. Monitoring data was analysed to assess the influence of rainfall and snow-melt on groundwater conditions, and the initiation of slope movements. The coupled hydrology-slope stability model CHASM was applied to detect areas most prone to slope failures, and to simulate slope stability using a variety of input data. Subsequently, CHASM was refined and two web-based applications were developed: a technical early warning system to constantly simulate slope stability integrating rainfall measurements, hydrological monitoring data and weather forecasts; and a decision-support system allowing for quick calculation of stability for freely selectable slope profiles. On the regional scale, available landslide inventory data were analysed for their use in evaluation of rainfall thresholds proposed in other studies. Adequate landslide events were selected and their triggering rainfall and snow-melting conditions were compared to intensity-duration and cumulative thresholds. Based on the results, a regional landslide early warning system was developed and implemented as a webbased application. Both, the local and the regional landslide early warning systems are part of a holistic and integrative early warning chain developed by the ILEWS project, and could easily be transferred to other landslide prone areas.

Author : Anonim
Publisher : Unknown
Page : 380 pages
File Size : 54,7 Mb
Release : 1991
Category : Geology
ISBN : UCBK:C072429688

Get Book

Special Study by Anonim Pdf

Author : Joel L. Pederson,Carol Merritt Dehler
Publisher : Geological Society of America
Page : 532 pages
File Size : 41,9 Mb
Release : 2005-01-01
Category : Science
ISBN : 9780813700069

Get Book

Interior Western United States by Joel L. Pederson,Carol Merritt Dehler Pdf

Author : Anonim
Publisher : Unknown
Page : 16 pages
File Size : 49,9 Mb
Release : 2003
Category : Geology
ISBN : PURD:32754084848195

Get Book

Survey Notes by Anonim Pdf

Author : Utah Geological and Mineral Survey
Publisher : Unknown
Page : 112 pages
File Size : 53,8 Mb
Release : 1990
Category : Geology
ISBN : UIUC:30112110054332

Get Book

Survey Notes by Utah Geological and Mineral Survey Pdf

Author : Michael D. Hylland,Mike Lowe
Publisher : Utah Geological Survey
Page : 42 pages
File Size : 54,9 Mb
Release : 1998
Category : Science
ISBN : 9781557916228

Get Book

Characteristics, Timing, and Hazard Potential of Liquefaction-induced Landsliding in the Farmington Siding Landslide Complex, Davis County, Utah by Michael D. Hylland,Mike Lowe Pdf

The Farmington Siding landslide complex is in Davis County, Utah, about 25 kilometers north of Salt Lake City. The landslide complex covers approximately 19.5 square kilometers and is one of 13 late Pleistocene/Holocene features along the Wasatch Front mapped by previous investigators as possible liquefaction-induced lateral spreads. The Farmington Siding landslide complex is in a largely rural area, but state and interstate highways, railroads, petroleum and natural-gas pipelines, and other lifelines cross the complex. Continued population growth along the Wasatch Front increases the likelihood of urban development within and adjacent to the landslide complex. Development along the Wasatch Front has proceeded with little consideration of hazards associated with liquefaction-induced landslides. Slope-failure mechanisms, extent of internal deformation, and timing of landslide events are poorly understood, and these factors must be evaluated to enable local governments to effectively plan for development and implement hazard-reduction strategies as needed. The purpose of this study is to assess the hazard associated with future liquefaction-induced landsliding within and adjacent to the Farmington Siding landslide complex by evaluating slope-failure modes and extent of internal deformation within the complex, inferring the geologic and hydrologic conditions under which landsliding occurred, determining the timing of landsliding, and evaluating the relative likelihood of various earthquake source zones to trigger liquefaction-induced landsliding. We chose the Farmington Siding landslide complex for this study because of the distinctiveness of geomorphic features on the northern part of the complex and the presence of landslide deposits that are clearly of different ages. Furthermore, because much of the area is rural, appropriate land-use planning measures can still be implemented to protect future development.

Author : Francis X. Ashland
Publisher : Unknown
Page : 60 pages
File Size : 45,6 Mb
Release : 2003
Category : Science
ISBN : 1557916896

Get Book

Characteristics, Causes, and Implications of the 1998 Wasatch Front Landslides, Utah by Francis X. Ashland Pdf

The majority of the 1998 Wasatch Front landslides were likely triggered following a cumulative rise in ground-water levels resulting from four or more successive years of above-normal precipitation. Triggering of landslide movement likely coincided with a transient ground-water-level rise associated with the spring snowmelt and contemporaneous above-normal precipitation. In most Wasatch Front areas, 1998 was the wettest as well as the last year of the precipitation period. An increase in landslide activity began in 1997, following two to four successive years of above-normal precipitation. This study examines the relation between the 1998 landslides and the 1995-98 precipitation period (1993-98 in Spanish Fork Canyon). Accordingly, this study investigates the significance of the most recent precipitation period in relation to the historical precipitation record, and compares it with the 1980-86 period. In addition, other causes of the 1998 landsliding are explored, most importantly hillside modification related to residential development. This study also examines several issues, and their implications, related to the 1998 Wasatch Front landslides including the susceptibility to reactivation of pre-existing landslides, consideration of the state of landslide activity, and the possibility of developing landslide-movement prediction tools based on an instability threshold concept. The majority of the landslides discussed occurred near urbanized areas of the Wasatch Front and consisted of either translational or rotational earth slides in pre-existing landslide areas. The discussion and conclusions are limited to these landslides and locations. The case histories presented provide new data intended to further the understanding of landslide hazards in the Wasatch Front.

Author : Kimm M. Harty,Mike Lowe
Publisher : Utah Geological Survey
Page : 61 pages
File Size : 46,6 Mb
Release : 2003
Category : Landslide hazard analysis
ISBN : 9781557916877

Get Book

Geologic Evaluation and Hazard Potential of Liquefaction-induced Landslides Along the Wasatch Front, Utah by Kimm M. Harty,Mike Lowe Pdf

The purpose of this study is to evaluate the potential for future movement of the landslides during earthquakes to determine the hazard these features may pose. Goals of the study were to: (1) determine when landslide movement occurred, (2) determine the failure mode (lateral spread versus flow failure), (3) determine if recurrent movement has occurred, (4) correlate, where possible, through radiocarbon dating, the timing of landslide movement(s) with the paleoseismic record from fault studies along the Wasatch Front, and (5) assess the current hazard from liquefaction-induced landslides along the Wasatch Front. Once the study was underway, it became evident that not all 13 landslides were liquefaction induced, or even landslides at all. Thus, an additional goal of the study became determining which of the 13 mapped landslides were liquefaction induced, which were not liquefaction induced, and which were formed by other processes. 40 pages + 16 plates

Author : Bruce N. Kaliser,James E. Slosson
Publisher : Utah Geological Survey
Page : 132 pages
File Size : 46,7 Mb
Release : 1988
Category : Science
ISBN : STANFORD:36105017162541

Get Book

Geologic Consequences of the 1983 Wet Year in Utah by Bruce N. Kaliser,James E. Slosson Pdf

Author : Jessica J. Castleton,Ashley Elliott,Greg N. McDonald
Publisher : Utah Geological Survey
Page : 78 pages
File Size : 54,9 Mb
Release : 2011-01-20
Category : Hazardous geographic environments
ISBN : 9781557918499

Get Book

Geologic Hazards of the Magna Quadrangle, Salt Lake County, Utah by Jessica J. Castleton,Ashley Elliott,Greg N. McDonald Pdf

This study contains 10 1:24,000 scale GIS based geologic hazard maps that include liquafaction, surface fault rupture, flood hazard, landslides, rock-fall, indoor radon potential, collapsible soils, expanisve soils, shallow bedrock and shallow groundwater potential. Also includes a 73 page accompanying report that describes the hazards and provides background information on data sources, the nature and distribution of hazards, and possible hazard reducation measures.

Author : Rob Young,Lisa Norby
Publisher : Geological Society of America
Page : 316 pages
File Size : 48,8 Mb
Release : 2009
Category : Science
ISBN : 9780813760322

Get Book

Geological Monitoring by Rob Young,Lisa Norby Pdf

"Geologic Monitoring is a practical, nontechnical guide for land managers, educators, and the public that synthesizes representative methods for monitoring short-term and long-term change in geologic features and landscapes. A prestigious group of subject-matter experts has carefully selected methods for monitoring sand dunes, caves and karst, rivers, geothermal features, glaciers, nearshore marine features, beaches and marshes, paleontological resources, permafrost, seismic activity, slope movements, and volcanic features and processes. Each chapter has an overview of the resource; summarizes features that could be monitored; describes methods for monitoring each feature ranging from low-cost, low-technology methods (that could be used for school groups) to higher cost, detailed monitoring methods requiring a high level of expertise; and presents one or more targeted case studies."--Publisher's description.

Author : Richard E. Giraud
Publisher : Utah Geological Survey
Page : 21 pages
File Size : 54,5 Mb
Release : 2005-06
Category : Science
ISBN : 9781557917294

Get Book

Guidelines for the Geologic Evaluation of Debris-flow Hazards on Alluvial Fans in Utah by Richard E. Giraud Pdf

The Utah Geological Survey (UGS) developed these guidelines to help geologists evaluate debris-flow hazards on alluvial fans to ensure safe development. Debris-flow hazard evaluations are particularly important because alluvial fans are the primary sites of debris-flow deposition and are also favored sites for development. The purpose of a debris-flow-hazard evaluation is to characterize the hazard and provide design parameters for risk reduction. The UGS recommends critical facilities and structures for human occupancy not be placed in active debris flow travel and deposition areas unless the risk is reduced to an acceptable level. These guidelines use the characteristics of alluvial fan deposits as well as drainage-basin and feeder-channel sediment-supply conditions to evaluate debris-flow hazards. The hazard evaluation relies on the geomorphology, sedimentology, and stratigraphy of existing alluvial fan deposits. Analysis of alluvial-fan deposits provides the geologic basis for estimating frequency and potential volume of debris flows and describing debris-flow behavior. Drainage-basin and feeder-channel characteristics determine potential debris-flow susceptibility and the volume of stored channel sediment available for sediment bulking in future flows.

Author : Uppsala universitet. Naturgeografiska institutionen
Publisher : Unknown
Page : 656 pages
File Size : 40,9 Mb
Release : 1975
Category : Physical geography
ISBN : UOM:39015055325388

Get Book

UNGI Rapport by Uppsala universitet. Naturgeografiska institutionen Pdf