web page Ondas Tipos P, S, R y L IRIS seismic waves Earthquakes generate four main types of seismic waves surface waves, poor P-waves, and weak S-waves Seismic Wave Demonstrations and Animations Ondas Tipos P, S, R y L Demo Seismic waves web page L. Braile, Purdue University L. Braile, Purdue University Seismic Wave Demonstrations and Animations http://web.ics.purdue.edu/~braile/edumod/waves/WaveDemo.htm web.ics.purdue.edu... L. Braile's web page ‚Äéweb.ics.purdue.edu/~braile/edumod/waves/WaveDemo.htm Ondas Tipos P, S, R y L L. Braile's web page Seismic Wave Demonstrations and Animations