landslides and avalanches ppt

Technically, an avalanche is any amount of snow sliding down a mountainside. report. 4. Introduction. They'll give your presentations a professional, memorable appearance - the kind of sophisticated look that today's audiences expect. 4. Quick Fun Facts On Mudslides: * Did you know that the deadliest mudslide occured in Vargas, Venezvela in 1999, killing about 30,000 to 50,000 people! Today in Washington, D.C., members of the USGS Landslides Program and interagency partners from around the country briefed congressional staff members and key stakeholders in a series of presentations called, “Gravity Never Sleeps: Landslide Risk Across the Country.” The presentations provided information on landslide causes and impacts, current and ongoing research, and Prevention of Landslides Landslide is a complex geohazard, with devastating impacts on sustainable socio-economic development, in mountainous terrains. Landslide - Landslide - Landslide mitigation and prevention: Landslides pose a recurrent hazard to human life and livelihood in most parts of the world, especially in some regions that have experienced rapid population and economic growth. According to a survey study by the International Landslide Centre at Durham University, UK, 2,620 fatal landslides occurred between 2004 and 2010. * Did you know that mudslides have occured in all 50 states within theus? Figure 5. Northern Pakistan is one of the most landslide prone regions, which can be attributed to the rugged topography, active seismicity, monsoon rains and anthropogenic activities on unstable slopes (Hewitt, 1998, Derbyshire et al., 2001, Kamp et … The severity of damage depends on the affected population's resilience. The steep hillslopes are susceptible to hazardous erosion, landslides, and avalanches and present a risk for people and property in the Khumbu region. Tectonics and tellurics − Earthquakes − Volcanic eruptions 4. LANDSLIDES, SLOPE FAILURE, AND OTHER MASS WASTING PROCESSES By Anni Watkins and Scott Hughes: Reading assignment: Chapter 6, p. 131-160; Keller. Velocity class Description Velocity (mm/sec) Typical Landslides occur when gravitational and other types of shear stresses within a slope exceed the shear strength (resistance to shearing) of the materials that form the slope. Avalanches occur in mountainous regions with a thick snow cover while a landslide occurs in sloppy places with loose and muddy soil. Presentation on natural disaster - avalanche 1. Landslide, the movement downslope of a mass of rock, debris, earth, or soil. Varnes Classification Landslide velocity scale (Cruden and Varnes, 1996). 5. marion502. If you continue browsing the site, you agree to the use of cookies on this website. Origins of Disasters, Natural Origins of Disasters (2) 3. Karny. This extreme landslide compilation features some crazy landslides and avalanches caught on camera around the world. WHO/EHA/EHTP Draft 1-1999 1.11.5. ppt, 569.5 KB. Landslides involve the movement of a large mass of earth down a slope and they can be caused by various factors including poor soil structure, rainfall, drought, erosion, and seismic activities (earthquakes). Clipping is a handy way to collect important slides you want to go back to later. Ppt landslides mudflows and avalanches Important factors considered to be responsible for causing landslides … : Varnes, D.J., 1978. Quick response teams (QRT) from local administration and NDRF, with standard Avalanche equipment and devices like GPS, Radio Beacons, shovels and sniffer dogs. A landslide is defined as the movement of a mass of rock, debris, or earth down a slope. A powerpoint presentation on avalanches with links to youtube clips and activities for pupils to complete. 3 years ago. It can be compared to a landslide, only with snow instead of earth. COMPLEX ROCK AVALANCHE EARTH SLUMP-EARTHFLOW Ref. Landslides and avalanches are among the major hydro-geological hazards that affect large parts of India besides the Himalayas, the Northeastern hill ranges, the Western Ghats, the Nilgiris, the Eastern Ghats and the Vindhyans, in that order, covering about 15 % of the landmass. CHAPTER 9 SLOPE PROCESSES, LANDSLIDES, AND SUBSIDENCE La Conchita slide January 10, 2005 Triggered by heavy rainfall, reactivation along an older landslide surface ... – A free PowerPoint PPT presentation (displayed as a Flash slide show) on PowerShow.com - id: 3c2044-ZmMzZ Casualties in the United States are primar-ily caused by rockfalls, rock slides, and debris flows. Relationship between landslide deposit area A L as a measure of deposit spreading and landslide deposit volume V L as a measure of size for long-runout landslides throughout the world (n=271 rock avalanches; n=72 volcanic debris avalanches). What is a Landslide? The figure In Landslides, Analysis and Control. Think about past avalanches and landslides that have occurred like the 1903 Frank landslide and avalanche that happened at the same time, in Alberta Canada it destroyed the parks canyons it’s beautiful trees’ it’s wonderful sights and killed nearly one hundred people, and covered a small town near Alberta with ice and snow. These are further subdivided by the type of 1 -By Ameya Singh VIII D 2. View Lecture 5 - Landslides and Snow Avalanches.pdf from GEOG 1350 at University of Guelph. landslides. The term "landslide" encompasses five modes of slope movement: falls, topples, slides, spreads, and flows. The term landslide or, less frequently, landslip refers to several forms of mass wasting that may include a wide range of ground movements, such as rockfalls, deep-seated slope failures, mudflows, and debris flows. Landslide Types and Processes David J. Varnes3 It is the purpose of this chapter to re-view the whole range of earth move-ments that may properly be regarded as landslides and to classify these move-ments according to factors that have some bearing on prevention or … "(1) Development in all landslide and avalanche areas shall minimize the risk of loss of life or property due to landslides and avalanches." 3. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. World's Best PowerPoint Templates - CrystalGraphics offers more PowerPoint templates than anyone else in the world, with over 4 million to choose from. Landslides are major natural disaster which frequently occur in Central Himalayan Region (CHR) and affect life of human as well as animals, damage agriculture and impedes progress. Policy 3.11 of the CBJ Comprehensive Plan states: "It is the policy of the CBJ to minimize the threat to human safety and development posed by landslides and avalanches." Slope movement types and processes. Landslides and avalanches These mass movements of soil, rock or snow occur in all parts of the country, in mountains and flatlands, and usually without warning. Lecture 5 - Landslides and Snow Avalanches Friday, October 6, 2017 Landslides … Another common term for avalanche is … Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Landslides in the United States cause approximately $3.5 billion (year 2001 dollars) in dam-age, and kill between 25 and 50 people annually. Landslides, Mudflows and Avalanches - Free download as Powerpoint Presentation (.ppt / .pptx), PDF File (.pdf), Text File (.txt) or view presentation slides online. Natural Disaster and its Types •A natural disaster is a major adverse event resulting from natural processes of the Earth Avalanche Thunderstorms Tornados Earthquakes Tsunami Hurricanes Landslides Volcanoes 2 NDMA guidelines on Landslides and Snow Avalanches The main objectives of the NDMA guidelines are to institutionalise the landslide hazard mitigation efforts, to make society aware of the various aspects of landslide hazard in the country and to prepare the society to take suitable action to reduce both risks and costs associated with this hazard. No public clipboards found for this slide, Presentation on natural disaster - avalanche. If you continue browsing the site, you agree to the use of cookies on this website. * Did you know mudslides also, occur when water rapidly Winner of the Standing Ovation Award for “Best PowerPoint Templates” from Presentations Magazine. report. Worldwide, landslides occur and cause Landslides are a type of "mass wasting," which denotes any down-slope movement of soil and rock under the direct influence of gravity. 11-33. Guidelines on the Management of Landslides and Snow Avalanches 139 Contact Us 144 Table of ConTenTs. But by adopting certain precautionary measures impact can be minimized. Landslides in India are considered a major hazard in most hilly and mountains regions as well as in steep river banks and coastlines. 4.5. ainekel. Creative Commons "Sharealike" Reviews. 4 years ago. Introduction - Heavy rains saturate the Portland, Oregon area. ~180 words. Infestations See Module Preview for initial information and a Powerpoint Presentation. PPTX, PDF, TXT or read online from Scribd, Harper Lee's To Kill a Mockingbird 50th Anniversary Celebration, The Return of the King: Book Three in the Lord of the Rings Trilogy, The 5 Love Languages: The Secret to Love that Lasts, The Subtle Art of Not Giving a F*ck: A Counterintuitive Approach to Living a Good Life, When They Call You a Terrorist: A Black Lives Matter Memoir, Leadership Strategy and Tactics: Field Manual, 0% found this document useful, Mark this document as useful, 0% found this document not useful, Mark this document as not useful, Save Landslides, Mudflows and Avalanches For Later. Rock avalanches and landslides, rock falls and slope slips are all contained in the concept of mass movements. 1. Sometimes a large mass of snow with ice and rock slides down from a mountain which may damage the hill roads. Already done: Hazards include the impact of rapidly moving debris, the collapse of ground beneath a structure and secondary effects such as river damming and landslide-generated waves. Looks like you’ve clipped this slide to already. These landslides resulted in the death of over 32,322 people. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. − Landslides and avalanches . The highest-risk areas are often concentrated along the river valleys or steep valley walls, which host most of the settlements in the Mt. Control of Avalanches. Now customize the name of a clipboard to store your clips. See our Privacy Policy and User Agreement for details. explains causes and effects of avalanche - a natural disaster. Epidemics − Yellow fever − Cholera − Meningitis 5. 5 years ago. See our User Agreement and Privacy Policy. The ever more intensive usage of … Unformatted text preview: Landslides Learning Objectives Understand slope processes and the different types of landslides Know the forces that act on slopes and how they affect slope stability Know which geographic regions in North America are at risk from landslides Know the effects of landslides and their links with other hazardous natural processes Learning Objectives, cont. You can change your ad preferences anytime. CHAPTER 9 SLOPE PROCESSES, LANDSLIDES, AND SUBSIDENCE La Conchita ‘slide January 10, 2005 Triggered by heavy rainfall, reactivation along an older landslide surface (35,000 years ago, 6000 years ago, and 1995) Potential solution: relocate people and better land use regulation R.L. The information presented here is an introduction to the landslide process, a presentation of the different types of landslides, and an introduction on how landslides can be mitigated and managed as a hazard. On some sections, special structures called galleries are constructed to reduce the impact of loads or avalanches. Landslides are among the many natural disasters causing massive destructions and loss of lives across the globe. Schuster, U.S. Geological Survey Introduction Landslide and other ground failures cause substantial damage … The causes of landslides in India are not much different from the world, but there are some peculiarities. Use explosives to create smaller, controlled avalanches and thus avoid building up of snow for large unpredictable destructive avalanches. Special Report 176, Transportation Research Board, Washington, pp.

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