Centre For Pure And Applied Geology University Of Sindh Jamshoro ... (sindhgeology.blogspot.com) - March 15, 2010
Pressure waves or Primary waves (P-waves), are longitudinal waves that travel at maximum velocity within solids and are therefore the first waves to appear on a seismogram. S-waves, also called shear…
earthquake: Definition, Synonyms from Answers.com (answers.com) - January 22, 2009
Every tremor produces different types of seismic waves which travel through rock with different velocities: the longitudinal P-waves (shock- or pressure waves), the transverse S-waves (both body waves…
eScholarship: Improving earthquake source spectrum estimation ... (escholarship.org) - May 04, 2007
Seismic waves travel inside the Earth's crust and mantle and are affected by attenuation, velocity and density variations, near surface effects and scattering until they finally arrive at the seismic sta…