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Seismic wave - Wikipedia


Seismic waves are waves of energy that travel through the Earth's layers, and are a result of ... Other modes of wave propagation exist than those described in this article; ... S-waves are slow...

These waves are slower than those that originate at the focus


s waves.

Seimic Waves and Earth's Interior


These are the waves that do the most damage to our buildings, highways, etc. ... To apply those ideas to earthquake studies, think of the earthquake location as the ... Secondary , or S waves, travel slower than P waves and are also called ... the time that earthquake rupture initiated (called the "origin time") into the prob...

Earthquake | Seismic waves as body waves and surface waves


Learn about the types of seismic waves: Body and Surface wave. ... Those waves that are the most destructive are the surface waves which generally ... as the Earth's inner layers, from the focus of an earthquake to distant points on the surface.

Lab 10 - Earthquake Epicenter Location


Each of these waves travel at different velocities (speeds), even though they are generated simultaneously by an earthquake at the focus (point of origin within the crust). Since P-waves travel faster than S-waves do, the seismograph will detect ... Assuming that neither vehicles slow down nor stop, how long does it take for ...

Structure of the Earth: the story of the waves


Reduce in intensity more quickly than other waves; these 'ground moving' waves ... The slower of the two types of body wave; not transmitted by liquids (or other fluids) .... Epicentre, The point on the Earth's surface directly above the focus of an ... where the rocks on one side of the fracture have moved relative to those...


www.ucl.ac.uk/EarthSci/people/lidunka/GEOL2014/Geophysics4 - Seismic waves/SEISMOLOGY .htm

Surface waves are larger in amplitude and longer in duration than body waves. These waves arrive at seismograph after the arrival of P- and S-waves because of ... Love waves (named for A.E.H. Love, who discovered them) travel by a transverse ..... All is not lost since reflection seismology could detect the slower layer.

Earthquake! - Center for Science Education


However, you will understand each activity better if you complete them in this order: ... These vibrations, called seismic waves, travel outward in all directions and ... location on the surface of the earth directly above the focus of an earthquake. .... Because S waves travel slower than P waves, they always arrive at locations ...

Plate tectonics and people [This Dynamic Earth, USGS]


May 5, 1999 ... Evidence of the sideways shift of these two landmasses can be found all along ... the Earth's interior from the rupture point, called the earthquake focus. ... are much less frequent than those along plate boundaries and more difficult to explain. .... waves can take them thousands of kilometers from their origin ...

Earthquakes & Earth's Interior - Tulane University


Sep 24, 2015 ... Note that S-waves travel slower than P-waves, so they will reach a seismograph after the ..... Earthquakes along these zones can be divided into shallow focus ... Many of them occur as a result of re-activation of ancient faults, ...