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Thursday, April 23, 2020 | History

2 edition of Influence of rainfall and ancient landslide deposits on recent landslides (1950-71) in urban areas of Contra Costa County, California found in the catalog.

Influence of rainfall and ancient landslide deposits on recent landslides (1950-71) in urban areas of Contra Costa County, California

Tor Helge Nilsen

Influence of rainfall and ancient landslide deposits on recent landslides (1950-71) in urban areas of Contra Costa County, California

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  • 36 Currently reading

Published by U.S. Govt. Print. Off. in Washington .
Written in

    Places:
  • California,
  • Contra Costa Co.
    • Subjects:
    • Landslides -- California -- Contra Costa Co.,
    • Rain and rainfall -- California -- Contra Costa Co.

    • Edition Notes

      Bibliography: p. 17-18.

      Other titlesInfluence of rainfall and ancient landslide deposits on recent landslides ...
      Statementby Tor H. Nilsen and Barbara L. Turner.
      SeriesGeological Survey bulletin ; 1388, Geological Survey bulletin ;, 1388.
      ContributionsTurner, Barbara L., joint author.
      Classifications
      LC ClassificationsQE75 .B9 no. 1388, QE599.U5 .B9 no. 1388
      The Physical Object
      Paginationiii, 18 p. :
      Number of Pages18
      ID Numbers
      Open LibraryOL4855387M
      LC Control Number75619055

      The Landslide Handbook— A Guide to Understanding Landslides. By Lynn M. Highland, United States Geological Survey, and. Peter Bobrowsky, Geological Survey of Canada. Circular U.S. Department of the Interior U.S. Geological Survey.   The factors which influence a landslide depend on slope angle, climate, weathering and slope stability. Landslides are caused by both natural and human activity. Natural causes may consist of earthquakes, volcanoes, rainfall or river erosion. Human causes consist of mining, excavation and displacement of rock, interference with natural drainage systems and .


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Influence of rainfall and ancient landslide deposits on recent landslides (1950-71) in urban areas of Contra Costa County, California by Tor Helge Nilsen Download PDF EPUB FB2

Influence of rainfall and ancient landslide deposits on recent landslides () in urban areas of Contra Costa County, Californiania (OCoLC) Material Type: Government publication, National government publication: Document Type: Book: All Authors / Contributors: Tor Helge Nilsen; Barbara L Turner; Geological Survey (U.S.).

Influence of rainfall and ancient landslide deposits on recent landslides () in urban areas of Contra Costa County, California (DLC) (OCoLC) Material Type: Document, Government publication, National government publication, Internet resource: Document Type: Internet Resource, Computer File: All Authors / Contributors.

Influence of rainfall and ancient landslide deposits on recent landslides () in urban areas of Contra Costa County, California Bulletin. Out of landslides, however, rainfall events pertaining to 81 landslides were analysed to yield an empirical intensity–duration threshold for landslide : Jordi Corominas.

Cambridge Core - Geomorphology and Physical Geography - Landslides - edited by John J. Clague. Nilsen, T.H., Turner, B.L.: Influence of rainfall and ancient landslide deposits on recent landslides (–51) in urban areas of Contra Cose County. Bull. US Geolog. Surv. () Google ScholarAuthor: Murat Mollamahmutoğlu, Yılmaz Acar.

Holocene landslides in KwaZulu-Natal, South Africa Article (PDF Available) in South African Journal of Geology (1) March w Reads How we measure 'reads'. A landslide is defined as the movement of a mass of rock, debris, or earth down a slope. Landslides are a type of "mass wasting," which denotes any down-slope movement of soil and rock under the direct influence of gravity.

The term "landslide" encompasses five modes of slope movement: falls, topples, slides, spreads, and flows. These are further subdivided by the type of. The major landslide events that occurred in Chittagong City in and have caused the death of about people and incurred a considerable amount of property loss.

At least ten landslide events occurred during the period of –, with mainly rainfall as the triggering factor. The critical rainfall condition of the landslide events was analyzed with Cited by: The term landslide or less frequently, landslip, refers to several forms of mass wasting that include a wide range of ground movements, such as rockfalls, deep-seated slope failures, mudflows, and debris ides occur in a variety of environments, characterized by either steep or gentle slope gradients, from mountain ranges to coastal cliffs or even underwater, in which case they.

It is also clear that the number of landslides increases rapidly at the start of the monsoon as the rain bands push northwards, but then decline slowly as the monsoon disperses. There is also considerable year-on-year variation; in particular the very strong and prolonged monsoon rainfall across parts of India is very clear for parts of a landslide.

TYPES OF LANDSLIDES The term “landslide” describes a wide variety of processes that result in the downward and outward movement of slope-forming materials including rock, soil, artificial fill, or a com-bination of these.

The materials may move by falling, toppling, sliding, spreading, or flowing. Landslides are among the many natural disasters causing massive destructions and loss of lives across the globe.

According to a survey study by the International Landslide Centre at Durham University, UK, 2, fatal landslides occurred between and These landslides resulted in the death of o people. Analysis: non-seismic fatal landslides caused 3 deaths in In an analysis of the landslide Influence of rainfall and ancient landslide deposits on recent landslides book for by Dr.

Dave Petley, Pro-Vice-Chancellor at the University of Sheffield-- it was shown that non-seismic fatal landslides occurred last year, causing 3 deaths. Given the number of deadly landslides, is the. Words: Length: 1 Pages Document Type: Essay Paper #: Landslide by Desmond agley Desmond agley's Landslide is a novel that offers an immense variety of interesting plots and angles that keep the reader engrossed right through the tale.

ob oyd, a geologist, suffers from amnesia but finds a mystical sort of connection with the land he is. The causes of landslides are usually related to instabilities in slopes. It is usually possible to identify one or more landslide causes and one landslide trigger.

The difference between these two concepts is subtle but important. The landslide causes are the reasons that a landslide occurred in that location and at that time. Regional landslide types in Canada Author(s) where postglacial marine submergence and postglacial uplift formed sensitive fine-grained marine deposits; and (4) valley walls, escarpments, and deep thaw basins in the Lower Mackenzie Valley region and adjoining plains of northwestern Canada, where ice-rich permafrost occurs in fine-grained.

This study analyzes rainfall threshold and slope stability of Amboori area to identify the possibility of establishing an early warning system, which could minimize the effects of potential landslides. The use of rainfall threshold analysis for determining early warning systems have been established from other studies (Glade et al., Cited by: The Basilicata region (southern Italy) has the highest density of landslides, with more than 27 landslide areas every km 2 [1,2,3].This high landslide density is related to predisposing conditions, such as prevailing clay materials as well as the morphological setting of the slopes, and to conditions such as extreme rainfall events [4,5] or human activity, such as cave Cited by: 7.

The Landslide Handbook— A Guide to Understanding Landslides By Lynn M. Highland, United States Geological Survey, and Peter Bobrowsky, Geological Survey of Canada Circular U.S. Department of the Interior U.S. Geological SurveyFile Size: 4MB. Urban developments are located on ancient landslides that are subject to reactivation due to construction of earthworks or to heavy rainfall.

Cuts are made in which foliation dips outward at an angle lower than the inclination of the cut slope (i.e., the dip surface “daylights” in the cut) (Salcedo, ). The Zhenggang landslide (E98[degrees]55'[degrees]90', N28[degrees]30'[degrees]40') is a huge ancient landslide located at the right bank of the downstream of the Gushui hydropower station in the southeastern Tibetan Plateau of China (Figure 1) and has a serious impact on the safety of diversion tunnels and flood discharge tunnels of the.

The purpose of the book is to take readers into the most vulnerable communities in order to understand and address rainfall-triggered landslide hazards in these areas.

Community residents are not just seen as those at risk, but as the people with the best practical knowledge of the slopes in their neighborhood. Introduction. Landslides are responsible for causing loss of life and extensive damage to property in many regions throughout the world.

Even though an otherwise stable slope may fail due to human-induced factors, such as excavation at the toe or loading due to construction, many slopes simply fail due to rainfall infiltration.Rainfall induced landslides are common in tropical Cited by: The second deadliest landslide disaster of the 21st century happened on August 8,at Zhouqu County in China.

The landslide that was triggered by heavy rainfall happened at midnight claiming the lives of many unaware victims. Over 1, people were killed and Author: Oishimaya Sen Nag. A large earthquake struck Padang Province, West Sumatra, Indonesia, at on Septem The earthquake had a moment magnitude of Mwand triggered landslides in Tandikat, Padang Pariaman Regency.

The landslides occurred during rainfall, and originated on mountains mantled with loose pumice, taking many lives. The unfortunate Cited by: 5.

Insights on landslide triggered by rainfall from a global database of landslide inventories. to develop our understanding of rainfall induced landslides, by allowing to confront the various measures of landslide properties, to deterministic model outputs, to detailed rainfall measurements (from radar or satellite.

Immediately download the Landslide summary, chapter-by-chapter analysis, book notes, essays, quotes, character descriptions, lesson plans, and more - everything you need for studying or teaching Landslide. FORESTRY, LANDSLIDES AND PUBLIC SAFETY June Executive Summary Severe winter storms impacted Oregon in These storms produced record rainfall and triggered landslides in many parts of the state.

Some of these landslides became dangerous debris flows or debris torrents (landslides that move rapidly down stream channels). Two debris.

Was a Landslide Year. On 3 Januarythe Met Office released its annual statistics for showing that it was the second wettest year in the UK since national records began in ( saw just mm more rainfall). Rainfall records show that was the wettest year for England and the third wettest for Wales.

A series of mudflows occurred in Southern California in early Januaryparticularly affecting areas northwest of Los Angeles in Santa Barbara incident was responsible for 23 deaths, although the bodies of two victims were not found.

Approximately people were hospitalized with various injuries, including four in critical condition. Cause: Soil saturation from heavy rainfall, and. This book was about kids who are alone in a house when a landslide covers it.

It scared me as a child to think this could really happen. The children are siblings from very young to teenagers and they have some pets in the house with them. There were injuries and death in the book and it troubled me alot/5. Landslides are the most costly geo-hazard in the world, and they’re often the cause or the result of other hazards and disasters such as tsunamis, earthquakes, wildfires, and volcanic eruptions.

Landslide Hazards, Risks, and Disasters makes a close and detailed examination of major mass movements and provides measures for more thorough and. Landslides and Engineered Slopes. Experience, Theory and Practice contains the invited lectures and all papers presented at the 12th International Symposium on Landslides, (Naples, Italy, June ).

The book aims to emphasize the relationship between landslides and other natural by: 8. Landslide Kills at Least 51 in Myanmar, With More Heavy Rain on the Way “This year’s flood is the worst in my life,” said a lawmaker from an affected township, which was.

The term landslide includes a wide variety of mass movements that result in the downward and outward movement of slope forming materials like rocks, soils, artificial fills or any combination of these, under the influence of gravity.

It is a geographical phenomenon, including wide range of ground movement, when the shear stress exceeds the shear strength of the materials. A pilot landslide-mapping project was conducted in the vicinity of Atchison, Kansas, to inventory existing landslides and determine the factors that caused them.

Landslides are generally controlled by the slope morphology, geology, soils, and moisture conditions. For this study, landslides were divided into recent and older landslides.

Landslides in Nepal and the SW Monsoon. As Nepal moves out of the emergency phase of the earthquake disaster and starts to transition into the recovery and reconstruction phases, attention is now turning to the potential impacts of the SW (summer) monsoon period.

In particular, there is now real concern that the heavy rainfall that the monsoon brings may. b.l. () - Influence of rainfall and ancient landslide deposits on recent landslides (–71) in urban areas of Contra Costa. Landslides most often occur on slopes composed of alternating impervious (clayey) and water-bearing rock (for example, sand and gravel or fissured limestone).

The development of landslides is also promoted by types of bedding in which layers are inclined in the direction of the slope or are crossed by fissures going in the same direction.

The book aims to establish three foundations for delivering ex-ante landslide risk reduction:?a scientific base: landslide hazard can often be reduced through the construction of strategically aligned networks of surface drains;?a community base: community residents are not just seen as those?at risk,?

but as the people with the best. Landslides and mudslides. Learn about landslide history, hazards, research, predictions and building practices to minimize risks. Landslides are also known as landslips, slumps or slope failure. They refer to the movement of rock, debris or earth down a slope.

A landslide is a result of the failure of materials holding together the hill slope and is driven by the force of gravity. There are various landslide movements which range from sudden.