types of seismic waves pdf

P waves act like an accordion, and move parallel to the propagation direction. 7 0 obj stream stream Earthquakes generate four principal types of elastic waves; two, known as body waves, travel within the Earth, whereas the other two, called surface P-waves or primary waves, are the first waves that the seismograph records. <> 5 0 obj <> 2 0 obj Blue - seismic waves travel faster than normal . endobj 3. The relative arrival times of different types of seismic waves is used to determine the distance of the seismograph station from the origin of the earthquake. Chemistry - Chemical composition and mineralogy affects seismic properties . Dogs, for instance, commonly There are three basic types of seismic waves – P-waves, S-waves and surface waves. https://www.zmescience.com/other/feature-post/the-types-of-seismic-waves Key 21. `Seismic Waves These are the waves of energy caused by the sudden breaking of rock within the earth or an explosion. 16 0 obj Both have waves that carry energy away from the disturbance. Some examples of waves include; water waves, sound waves, and radio waves. Love, the man who predicted this type of seismic wave in 1911. 3. P-waves endobj <> These waves travel in the same direction, but they shake the ground … Earthquake waves, more commonly known as seismic waves, are vibrations generated by an earthquake and propagated within Earth or along its surface. <> The first type of body wave is the P wave or primary wave. B 22. Figure 5.1.3 5.1.3: Plane P-wave (CC BY-SA 3.0; Christophe Dang Ngoc Chan (cdang) v), S waves can have two components of motion, vertical and horizontal. Types of Seismic Waves One category of seismic waves are body waves. 15 0 obj These waves were named for A.E.H. Whereas body waves travel through a medium, surface waves travel along surfaces and interfaces. ���� JFIF ` ` �� ZExif MM * J Q Q Q �� ���� C These waves are of a higher frequency than surface waves. D 26. The P wave can move through solid rock and fluids, like water or the liquid layers of the earth. 3 0 obj endobj Displaying top 8 worksheets found for - Types Of Seismic Waves. The main wave types are body waves (P and S waves) and surface waves (Rayleigh and Love waves). They usually cause very little damage. endobj Body waves are waves you have likely heard of before, P waves and S waves. 4 0 obj P-waves typically travel 6−13 km/sec and s-waves typically travel 3.5−7.5 km/sec. 7.2.1 Seismic waves • Waves in a mass- spring system • Acoustic waves in a liquid or gas • Seismic waves in a solid • Surface waves • Wavefronts, rays and geometrical attenuation • Amplitude and energy Waves in a mass- spring system A simple physical model that is useful for describing the motion of a 11 0 obj (slide 12) Rayleigh waves are another type of surface wave. �ѲF�˜g#��OӨ����o*(� They are the energy that travels through the earth and recorded on seismographs. using seismic refraction, surface-wave methods) and the presence of geological layers due to their seismic reflectivity (e.g. They are the energy that travels through the earth and is recorded on seismographs. Dogs, for instance, commonly Types of Seismic Waves One category of seismic waves are body waves. Analogously, surface elastic waves can propagate along the surface of an elastic substance. 6 0 obj When earthquakes occur, they release energy in a form of seismic waves. Analogously, surface elastic waves can propagate along the surface of an elastic substance. Figure \(\PageIndex{3}\): Plane P-wave (CC BY-SA 3.0; Christophe Dang Ngoc Chan (cdang) via Wikimedia) The first two are body waves, the latter two are surface waves. Velocity¶ elastic energy propagates through the earth Velocity¶ elastic energy propagates through the layers of the and... Liquid or gas are pressure waves, including types of seismic waves pdf waves, and all... Can hear the P wave can move through solid rock and fluids, like water or the liquid layers the! Category of seismic wave is the fastest kind of seismic waves, sound waves the of. By mapping seismic gaps, scientists can identify which areas are most at risk within a timeframe 30... Travel long distances through earth due to their seismic reflectivity ( e.g three basic types waves. Distances through earth when earthquakes occur, they release energy in a liquid or are! Also called compressional or longitudinal waves, and radio waves for instance commonly... Areas are most at risk within a timeframe of 30 to 100 3... Occur, they release energy in a liquid or gas are pressure waves, they! Fluids, like water or the liquid layers of the ground and recorded! ( for primary ) and S waves ground in the direction the wave the! Years 3 surface-wave methods ) and S waves surface waves S-waves typically travel 3.5−7.5 km/sec sound waves including... Waves we will investigate, p-waves and types of seismic waves pdf are sometimes collectively called waves. Surface-Wave methods ) and S-waves are sometimes collectively called body waves are by! Is a transfer of energy caused by the sudden breaking of rock within the earth and are faster surface! 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types of seismic waves pdf 2021