Animation on the characteristics of the 3 types of seismic waves (P, S and L) detected by a seismograph: speed, regions of the globe crossed , types of movements of the ground and damage caused on surface.
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Learning goals
To illustrate seismic waves propagation and their corresponding speed.
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On the surface, earthquakes produce various destructive effects. A seismograph placed at one point on the surface records the successive traces of the quake as a function of the type of vibration…