Geologic processes and hazards pdf

The accompanying video records a series of debris flow surges at jiangjia ravine, in yunnan. Geologic hazards mitigation is the application of geologic engineering principles to minimize or prevent the effects of naturally occurring geologic hazards. Plate tectonics splitting and joining of landmasses. Geological processes like earthquakes, volcanic eruptions, and landslides have the potential to cause great harm and can constitute hazards. Geologic hazards at volcanoes poster download a pdf file of this 18x27 poster showing a diagram of a cutaway volcano and the various hazards associated with volcanoes either during or between eruptions. Geological hazards are covered in this article under the. Of99d georgetown is located in a nearly northsouth trending. Hazardous events that previously produced disasters are now producing. Geologic processes have operated on the earth ever since. Ability to locate areas on map, explain what geologic feature is located in that area and what geologic forces impacted that area. Concepts of hazards, disasters and hazard assessment goals. A geologic hazard is an extreme natural events in the crust of the earth that pose a threat to life and property, for example, earthquakes, volcanic eruptions, tsunamis tidal waves and landslides.

An earthquake occurs due to sudden transient motion of the ground as a result of release of. Earthquakes have the potential to inflict a greater loss of life and property in a single event than all other hazards in utah. Hazards are predictable from scientific evaluation 2. The geologic processes and concepts needed for understanding the root causes of hazards in hawai. Invite students to make more game cue cards with additional geologic processes, or have them write in a science journal or notepad ideas for cards to be added to the geological processes cue cards. Geologic processes and hazards in highrelief terrain. Linkages exist between different natural hazards as well as between hazards and the physical environment 4. Earthquakes, landslides and tsunamis li juan and chen yong encyclopedia of life support systems eolss magnitude m5. Geologic and hvdrologic hazards are studied to understand more completely the physical processes which cause them.

Earthquakes are one of those deadliest events that change the entire landscape, and they are associated with tectonic processes. The poster can also be ordered for free through the usgs. The process of moving materials from their source to another location through weathering. Furthermore, the sandbox set up can be modified to explore a variety of conditions. Natural hazard natural hazards are potenti ally damaging natural phenom ena that may occur within spe cific period of time in a given area that may cause danger to people, structures or economi c assets and which may lead t o a disaster. Geological hazards occur because of geological processes such as movement in the tectonic plates and volcanic activity.

More on this fossil fuels, minerals, rocks, soil, water later in the course 3 links. They present large risks to those living in mountainous areas, as well as downstream from volcanoes in the case of the flows known as lahars that may travel 100 200 kilometers 62124 miles. Eg10 geologic hazards, geomorphic features, and landuse. The chapter presents planners with 1 a description of the most hazardous geologic phenomenaearthquakes, volcanoes, and tsunamis and their effects. Describes and discusses the background of study, delineation, and evaluation of ongoing surficialgeologic processes that may present threats to people, structures, and infrastructure in georgetown, clear creek county.

Chapter 10 natural hazards and risk reduction in hawaii. Choose from 265 different sets of geologic hazards flashcards on quizlet. The eruption of a snow covered volcano can melt enough snow to cause a lahar. Lahars and floods a lahar or mudflow is a flowing slurry of volcanic debris and water that originates on a volcano. The surface geology division conducts the traditional work of the mississippi geological survey. Links between internal and external geologic processes. The ugs geologic hazards program helps protect utahs public health and safety by investigating geologic hazards, providing state and local governments and the public with information and technical services, preparing geologichazard maps and publications, and. Hazards and resources hazards dangerous events and conditions resources the materials we use to get the things we want. Earthquake, earthquake hazards, intensity scale, seismic hazard. Risk analysis is an important component in our understanding of the effects of hazardous processes 3. Debris flows are slurries of sediment and water that are both an important geologic process and a major hazard. Some of these processes, like mountain building events expend energy on time scales of several hundred million years, whereas others, like earthquakes, expend energy on time scales of a few seconds although the storage of energy for such an event may take hundreds or thousands of years.

Technological or manmade hazards such as the toxicity of. Orchid prince paradise alii hoku plumeria paradise a b c figure 1. Hazards geological, hydrometeorological, marine and coastal objectives. Geologic hazards are those geologic conditions that present a risk to life injury or death, of substantial loss or damage to property, or damage to the environment. Geologic processes effect every human on the earth all of the time, but are most noticeable when they cause loss of life or property.

Geologic hazards are typically evaluated by engineering geologists who are educated and trained in interpretation of landforms and earth process, earthstructure interaction, and in geologic hazard mitigation. Sturgeon services international 3120 sturgeon street bakersfield, california, 93308. Causes, consequences and methods of containment find, read and cite all the research you need on researchgate. To assess potential geologic hazards, new samples were analyzed using argon analysis 40 ar 39 ar, and obtained the following. Quasinatural hazards such as smog or desertification arise through the interaction of natural processes and human activities. Unesco eolss sample chapters natural and human induced hazards vol. Geological hazards can rarely be stopped, but careful landuse planning, robust building. Earthquakes volcanic eruptions tsunami mass wasting streams and floods coastal hazards deserts, droughts. Some parts of the earths surface build up and some. Of99 active surficialgeologic processes and related. Feb 24, 2017 hazards caused by geologic process volcanic eruptions a. The strength of rocks, measured in terms of their resistance to weathering, is a basic geologic factor in the landslide process. On page two of this worksheet, you will answer questions based on the information you read on page one. The engineering geologist provides recommendations and designs to mitigate for geologic hazards.

Oecd glossary of statistical terms geologic hazard. Categorize the different causes of geological, hydrometeorological and coastal processes. Erosion when rock is worn away by water, ice or even wind, this is known as erosion. To learn about the history of the mississippi geological survey click here. This approach is called uniformitarianism, and it is a cornerstone of the earth sciences. Facing geologic and hydrologic hazards usgs publications. Geological processes and hazard a geologic hazard is one of several types of adverse geologic conditions capable of causing damage or loss of property and life. Includes a summary of town history, geologic conditions, and references. Natural processes and hazards natural hazards hazards. While some processes operate slowly and 2 chapter 1 gradually, infrequent catastrophic events have sudden and major impacts.

The damage is usually not covered by your homeowners insurance policy. Why is it beneficial to be able to predict when and where natural hazards will occur. Marston and others published geomorphic hazards find, read and cite all the research you need on researchgate. From tidal waves and sandstorms to lava flows and glaciers, natural geological processes are often hazardous to human life. These are all natural geologic processes, but they are termed geologic hazards when they damage structures or threaten lives. Natural hazards and the resulting disasters are the result of naturally occurring processes that have operated throughout earths history. The chapter presents planners with 1 a description of the most hazardous geologic phenomenaearthquakes, volcanoes, and tsunamisand their effects. Photographs illustrating volcano, earthquake, and tsunamirelated hazards in hawaii. Hazards and disasters in the geological and geomorphological record.

So that scientists know where to go in order to study them. Answer the following questions to demonstrate your understanding of this process. Geologic hazards phenomena can occur suddenly, or slowly. Geologic hazards affect utah, negatively impacting life safety, health, property, and the states economy. Eg10d the intense rain and subsequent flooding on the lower big thompson river basin region between 31 july and 01 august 1976 activated or accelerated several geologic processes. Many geologic processes affect the state, including coastal and fluvial flooding and erosion, earthquakes and the liquefaction and shaking they produce, land movement such as subsidence and landslides, and radon emission from rock and soil.

Identify areas prone to hazards brought by tropical. These hazards receive limited public attention and funding for hazard assessment and research. Hazards and resources 1 hazards dangerous events and conditions 2 resources the materials we use to get the things we want. An event which occurs as a result of physical processes acting within and between the earths spheres. Most hazardous process are also geologic processes. Geological processes and hazards landslide earthquakes. Major internal processes driven by energy heat in the earths interior 1 convection 2 plate tectonics 3 rock deformation 4 crystallization 5 metamorphism. These processes are natural and they have been active throughout indianas geologic history. Geology processesgeologic hazards supporting information. Major external processes geologic processes and hazards. Natural hazards fall into four main categories depending upon the driving forces of the event. Natural hazards, mitigation, adaptation linkedin slideshare. Glossary of environment statistics, studies in methods, series f, no. The earlier geologic hazard mitigation is incorporated into the development planning process, the more effective it is.

Natural hazards such as earthquakes or floods arise from purely natural processes in the environment. Everyday geologic processes, like erosion, have pro duced large effects over the course of earths vast his tory, carving out valleys or changing the shape of coastlines. Microsoft word chapter 11 coastal processes and related hazards. Geologic hazards, geomorphic features, and landuse implications in the area of the 1976 big thompson flood, larimer county, colorado. Geologic hazards are naturally occurring or manmade geologic conditions capable of causing damage or loss of property and or life. December 19, 20 revised january 10, 2014 project no.

This book presents geology applied to living, like how geologic processes and hazards. This chapter compares several modern environments with ancient settings in the rock record of. Hazards, disasters, earth science, museum collections, geological record. Dynamic processes move matter within the earth and on its surface, and can cause volcanic eruptions, earthquakes, tsunamis, erosion, and landslides. It is thus, too, a practical exercise in environmental geology, particularly as it relates to land use planning. Learn geologic hazards with free interactive flashcards. Geologic hazards introduction geologic hazards 93 n onseismic ground failures involv ing landslides, land subsidence, and expansive soils are significant haz ards that affect life and property in the united states. Ecological, geomorphlogical, atmospheric and biological.