{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Lecture 7

# Lecture 7 - Types of earthquake waves Types Body waves P...

This preview shows pages 1–4. Sign up to view the full content.

Types of earthquake waves Types of earthquake waves Body waves P waves (compressional waves) : Travel at speeds of 6-8 km/s through the earth's interior. Particle motion is parallel to direction of propagation. Also called primary waves (thus the P). Similar to sound waves. S waves (shear waves) : Travel at speeds of 3-5 km/s through the earth's interior. Particle motion is perpendicular to direction of propagation. Also called secondary waves (thus the S). Do not pass through liquids. Surface waves: Travel at speeds less than 3-4 km/s. They consist of dispersed wave trains (different frequencies travel at different velocities) that travel around the earth at its surface. Love waves: Particle motion is horizontal and perpendicular to the direction of propagation. Rayleigh waves Particle motion is retrograde elliptical in direction of propagation.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Pathways and recording of three types of seismic waves
P-wave (a) and S-wave (b) P-wave (a) and S-wave (b) particle motion particle motion

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern