Making Waves: Classroom Demos and Activities for Teaching About Seismic Waves 1 Larry Braile, Purdue University braile@purdue.edu, web.ics.purdue.edu/~braile S… Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Image006 - Seismic Waves Animation is a free transparent png image. There are two main provinces: the African LLSVP and the Pacific LLSVP. No membership needed. P-waves and S-waves are sometimes collectively called body waves. Click to see the animation. Animation 3: Seismic Waves. P waves are the fastest kind of seismic wave. Types of seismic waves. A seismic wave front emanates from an energy source like ripples on a pond, but in three dimensions. Of the body waves, the primary, or P, wave has the higher speed of propagation and so reaches a seismic recording station faster than the secondary, or S, wave. PART I: Introduction to the Animations Seismic Waves. Material returns to its original shape after wave … A 30. Seismic Waves CH 8.2 NCSCoS 2.04 * Imagine two railroad trains leaving the station at the same time on parallel tracks and traveling at different speeds. Key 21. A 23. A The focus of the earthquake is directly below the epicenter. Introduction [2] Earthquakes displace the ground during rupture and create seismic waves, which induce dynamic displacements that travel around the globe. What you will see is explained here. Seismic Waves Animations Principle(s) Investigated : Energy transmission by seismic waves, differences in wave movement and effects, elastic rebound/plate motions, waves in all directions and differences in travel times compared to distance. This animation, called a Ground Motion Visualization (GMV), shows the motion of the ground as detected on seismometers across North America - each dot is a seismic station and when the ground moves up it turns red and when it moves down it turns blue. Seismic Refraction (SR) is a surface geophysics method that utilizes the refraction of seismic waves on geology layers and rock/soil units to characterize subsurface geologic conditions. A visualization of earthquake waves traveling both through Earth's interior and radiating outward on the surface. Deformation propagates. In a homogeneous medium, a surface drawn through points of equal travel time is spherical, as depicted in the animation below. A 29. 1. Comparing Seismic Waves 19. Secondly, a new set of seismic phases which couple across the solid–fluid seafloor interface become supported. The precise speed that a seismic wave travels depends on several factors, most important is the composition of the rock. Seismic wave residential building icon animation - download this royalty free Stock Footage in seconds. The last type of earthquake wave to hit seismic stations is the surface wave. The effects of earthquake can be very severe and can cause major property damage[10]. A longitudinal P wave has the ability to move through solid rock and fluid rock, like water or the semi-liquid layers of the earth. While textbooks describe how P waves are faster than S waves that in turn are faster than surface waves, this animation of seismic waves generated by the Mariana Islands earthquake visually reinforces these observed seismic wave velocities. B 25. Surface waves move back and forth in a swaying motion in all directions. Permission granted for reproduction for non-commercial uses. All other content is ©2007 Michigan Technological University. The latest earthquakes on a map with news, lists, and links. The animation also identifies the regions of compression and rarefaction. The lines represent P-waves radiating out from the earthquake. No membership needed. Seismic waves travel fast, on the order of kilometers per second (km/s). Principle(s) Investigated: Energy transmission by seismic waves, differences in wave movement and effects, elastic rebound/plate motions, waves in all directions and differences in travel times compared to distance.. Standards: 1.g. The second animation at right shows the difference between the oscillatory motion of individual particles and the propagation of the wave through the medium. Rayleigh Wave (R-Wave) Animation. D 24. Press the play button to begin. You now have some basic knowledge about the nature and characteristics of mechanical waves: what they are, how they are measured, and the different ways in which longitudinal and transverse waves move through a medium as they transfer energy from one place to another. Search and find more on Vippng. Seismic wave high-rise building icon animation - download this royalty free Stock Footage in seconds. Amplitude decreases with depth. The different colors of the lines represent the velocity of the waves: Note that the lines turn blue as they cross t These earthquake waves tend to be the most destructive because one part of a building moves up, while another part might be moving down, left or right. Watch the waves from the M7.0 earthquake SE of Pondaguitan, Philippines roll across seismic stations in North America. Slides for PowerPoint - Beautifully designed chart and diagram s for PowerPoint with visually stunning graphics and animation effects. B 27. There are three basic types of seismic waves – P-waves, S-waves and surface waves. View animation of seismic waves synchronized with waveforms Seismic Waves is a useful and professional application designed to show you how earthquake waves propagate throughout the Earth. An earthquake generates a series of seismic waves that travel through the interior or near the surface of the Earth. This wave behaviour can also be used on a smaller scale by recording waves generated by explosions or ground vibrators in the search for oil and gas. Within the last decade, high‐rate kinematic Global Positioning System (GPS) methods [Larson et al., 2003] have been developed to provide ground displacements complementary to seismic records.. It pushes and pulls the rock it moves through in the same way sound waves push and pull the air. Seismology is the study of earthquakes and seismic waves that move through and around the earth. B 22. These provinces are characterized by slow shear wave velocities and were discovered by seismic tomography of deep Earth. Material returns to its original shape after wave passes. The focus is the origin of the earthquake – A free PowerPoint PPT presentation (displayed as a Flash slide show) on PowerShow.com - id: 7ef08e-Y2E4M However, due to sparse station … And just to be clear, seismic waves, they're normally associated with earthquakes, but they're any waves that travel through the Earth. Rayleigh wave: A surface seismic wave generated by the interaction of P-waves and S-waves at the surface of the Earth that move with a rolling motion. The Simple Wave Simulator Interactive provides the learner with a virtual wave machine for exploring the nature of a wave, quantitative relationships between wavelength, frequency and speed, and comparisons between transverse waves such as those traveling through a rope and longitudinal waves such as sound. Animations of water waves‎ (2 C, 7 F) Media in category "Animations of vibrations and waves" The following 150 files are in this category, out of 150 total. https://global.oup.com/.../9780199965557/student/ch11/animation_quiz/seismic Richter scale: The Richter magnitude scale provides a measure of the intensity of earthquakes on a 1 to 10 (base-10 logarithmic) scale. B 28. Surface Waves • Move along the Earth’s surface • Produces motion in the upper crust – Motion can be up and down – Motion can be around – Motion can be back and forth • Travel more slowly than S and P waves • More destructive Animation of wave types 20. Learn More. They could be due to an earthquake, or just really any kind of a large explosion, or anything that really essentially starts sending energy through the rock on Earth, really through Earth itself. Figures 1 through 4, as well as wave animations, are ©2000-2006 Lawrence Braile, used with permission. This animation produced in conjunction with KQED's QUEST Series, walks viewers through an easy to understand, playful introduction to Earthquake basics and various different seismic waves. types of seismic waves. P-waves This animation is a way to visualize an earthquake as it travels outwards from its starting point through the earth (viewed from above at left; in cross-section at right). pWP (an upgoing P-wave reflected off the ocean surface before being retransmitted into the solid earth), and t-phases which are trapped in the SOFAR channel (Tolstoy & Ewing 1950), are examples of such. It is the surface connecting points of equal travel time from the source. D 26. Particle motion consists of elliptical motions in the vertical plane and parallel to the direction of propagation. ... the level of damage each wave might cause in a residential area and test their predictions against several computer animations. 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