Ask Dr. Jay
If you have any questions about the course, feel free to ask the author of the book! You have to register in order to ask questions, but registration is free, and we won’t share your information with anyone.

Links for the Sixth Chapter

Hanging Wall versus Foot Wall
This video helps you make that distinction.

Types of Faults
This video doesn’t do oblique-slip faults, but they are just a combination of normal faults and strike-slip faults.

Animation of Elastic Rebound
This short animation allows you to visualize how elastic rebound theory works.

The Richter Scale and other Scales
This video gives the basics of the Richter Scale and the other scales used to measure earthquakes.

Video of a 9.1 Magnitude Eartquake and its resulting Tsunami
This video shows people experiencing an earthquake that is 9.1 on the Richter schale and the tsunami that followed.

Transverse versus Longitudnal Waves
This video uses a slinky (and a cool accent) to demonstrate the difference between the waves.

P-waves, S-waves, and Surface Waves
This video goes through the waves in earthquakes. It has good animations of P-waves and S-waves. You don’t need to know the two types of surface waves that the video discusses.

Interpreting a Seismogram
This video discusses seismograms. In the book, I deal with only the vertical ones shown in the video, so you don’t have to worry about the other two. Starting a 1:19, there is a great animation that shows how S-waves, P-waves, and surface waves show up on the seismogram.

Shadow Zones
This video has a three-dimensional visualization of P-wave and S-wave shadow zones.

Types of Mountains
This video goes through the types of mountains, giving animations and examples.