Active Source Seismology

The following are some teaching materials that I prepared for the AfricaArray REU project. Seismic reflection and refraction were taught in the class. I have given two-hour-long lectures and prepared related excises.

Reflection

Wavefront and wave path are two representations of seismic waves. The following animations show the wavefront and a wave path of a one-layer-over-half-space model. The velocity model is designed to be a typical crust with a Vp of 6 km/s and a layer thickness of 35 km. You may click the following images to see animations.

../_images/reflectedWavefront044.png

Click to download the animation YouTube version

../_images/reflectedWavefrontPath176.png

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The following two animations are simulated experiments for direct waves and reflected waves.

../_images/directWaveSurvey0139.png

Click to download the animation YouTube version

../_images/reflectedSurvey0139.png

Click to download the animation YouTube version