shock waves definition geography
It is High-Intensity Shock Waves. The economies of all countries are made up of three sectors; most HICs have a … Short-term or immediate responses occur in the days and weeks immediately after a disaster has happened. The mantle is about 2,900 kilometers (1,802 miles) thick, and makes up a whopping 84% of Earth’s total volume. Synonyms for Shock Waves in Free Thesaurus. Immediate and long-term responses to a tectonic hazard. A wave is formed by the wind blowing across the surface of the water, creating ripples, which then grow into waves. The mantle is the mostly-solid bulk of Earth's interior. Earthquakes occur along faults, which are large cracks in the earth's crust.Most of these are associated with the larger plate boundaries, along which the largest earthquakes usually occur. Large earthquakes can have hundreds to thousands of instrumentally detectable aftershocks, which steadily decrease in magnitude and frequency according to known laws. 3. Slab pull is that part of the motion of a tectonic plate caused by its subduction.In 1975 Forsyth and Uyeda used the inverse theory method to show that, of the many forces likely to be driving plate motion, slab pull was the strongest. A VSL often creates a void in the time-space diagram in the space between a vehicle’s trajectory at normal speed and a vehicle at the reduced speed within the VSL’s effective boundary. 2. Examples of these processes are folding, faulting and Vulcanicity. Aftershock Hazards in Haiti . Attribution: Western Geographic Science Center. High-Intensity Shock Waves listed as HISW Looking for abbreviations of HISW? Shockwaves (seismic waves) - energy released from the sudden jolt that vibrates through the ground Tsunamis - caused when water is displaced from plates moving underwater, creating a large wave Liquefaction - When soil is saturated, the vibrations of an earthquake cause it to act like a liquid. Physical consequences of earthquakes Liquefaction. Shock waves can also be felt in water. Complete with the correct geography definition and pictures to help your understanding. As in any other context, however, such changes remain subject to conservation of mass, momentum, and energy. An avalanche (also called a snowslide) is a rapid flow of snow down a slope.. Avalanches can be set off spontaneously, by such factors as increased precipitation or snowpack weakening, or by external means such as humans, animals, and earthquakes.Primarily composed of flowing snow and air, large avalanches have the capability to capture and move ice, rocks, and trees. As waves reach the coast the lower section slows due to friction. They are caused by the sudden jerking movements of the fault, either laterally or … Form 2 Geography. In this first chapter, which should become required reading in sf studies, Wegner provides a sweeping new theorization and periodization of the genre as a modernist practice. During a critical tremor, a specific area and any structure at that area will be shaken by body waves (P-and S-) and surface waves and can shear or move a structure in an alternate manner, now and again, all the while. The definition of natural disasters is any catastrophic event that is caused by nature or the natural processes of the earth. HISW - High-Intensity Shock Waves. The frequency of events will diminish with time, but damaging earthquakes will remain a threat. Thunder can be divided into two categories: (1) audible: acoustic energy that we can hear, and (2) infrasonic: acoustic energy that is below the frequency that the human ear can detect, generally a few tens of hertz. Economic sector: a major division of the economy based on the type of economic activity. Classroom Resources; Higher Model Answers; Revision Help; How to Access Teams ; Contact; Open Search. Looking for abbreviations of HISW? Features of an earthquake Feature Definition Focus Epicentre Shock waves Section B: Comparing two earthquakes … Skip to content ... GeoMrSmith. It is High-Intensity Shock Waves. The three main parts of Shockwaves are preceded by a lengthy introductory chapter, "The Modernisms of Science Fiction: Toward a Periodizing History." Plate motion is partly driven by the weight of cold, dense plates sinking into the mantle at oceanic trenches. Ground shaking is brought about by seismic waves. All the volcanic words that you are likely to encounter when studying the geography topic of volcanoes. An aftershock is a smaller earthquake that follows a larger earthquake, in the same area of the main shock, caused as the displaced crust adjusts to the effects of the main shock. An electromagnetic or sonic shock wave focused at a specific target (e.g., within the body). Learn and revise about earthquakes, the Magnitude scale and examine a case study looking at the devastation left in Haiti with BBC Bitesize KS3 Geography. Mentioned in: Tennis Elbow A shock wave is affected by the materials it travels through, and different materials have different effects. 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. Economic activity and energy. Home; S1 Geography; S2 Geography; S3 Geography; National 5. The severity of a disaster is measured in lives lost, economic loss, and the ability of the population to rebuild. A thick material, like water, might help the shock wave travel further, where as a thin material, like air, would not. Shockwaves occur at the boundary between two different traffic flows, and their speeds can be shown as a ratio of a difference of density to the difference of volumes at the two traffic states. 2. Internal Land Forming/endogenetic Processes-Processes operating in the interior of the earth resulting in the formation of natural physical features or landforms. Learn about and revise earthquakes and tsunamis and their causes and effects with GCSE Bitesize Geography (Edexcel). The shifting masses send out shock waves that may be powerful enough to alter the surface, thrusting up cliffs and opening great cracks in the ground. Learn more. Earthquakes, called temblors by scientists, occur almost continuously. Mr Smiths Online Classroom. This section on Tectonic activity covers Earthquakes, Formation of Fold Mountains, Human effect of Fold Mountain Ranges, Tectonic Plates, Volcanoes. A sudden disruption. Learn about and revise earthquakes and their causes and effects with GCSE Bitesize Geography (AQA). Geography Notes Form 2 . 1 synonym for shock wave: blast wave. New games every day! Landslide, the movement downslope of a mass of rock, debris, earth, or soil. An electromagnetic or sonic shock wave focused at a specific target (e.g., within the body). The aftershock sequence of the magnitude 7 earthquake that struck Haiti on Jan. 12, 2010, will continue for months, if not years. The mantle lies between Earth's dense, super-heated core and its thin outer layer, the crust. Wave formationWaves are the primary force causing erosion along coastlines. Liquefaction is when an earthquake takes place and shakes the wet soil. Menu. See more. Shock waves produce discontinuous changes in material properties. Volcanic activity: the eruption of molten rock, ash or gases from a volcano. Tsunami: a tidal wave caused by the shock waves originating from a submarine earthquake or volcanic eruption. We exclude from our definition those sources of thunderstorm-produced acoustic noise that are not electrical in origin (e.g., Georges, 1973). shock wave definition: 1. a sudden wave of increased pressure or temperature, caused by an explosion, an earthquake, or an…. Fortunately, most of them can be detected only by sensitive instruments called seismographs. Revision Help (National 5) Higher. The upper section topples over and breaks forward.The Fetch determines how powerful a wave may be. Shock wave definition, a region of abrupt change of pressure and density moving as a wave front at or above the velocity of sound, caused by an intense explosion or supersonic flow over a body. Events that occur in unpopulated areas are not considered disasters. What are synonyms for Shock Waves? Antonyms for Shock Waves. Shock wave therapy: A method of treating tennis elbow and other musculoskeletal injuries that involves directing bursts of high-pressure sound waves at the affected area. 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