This document defines key vocabulary terms related to earthquakes, including different types of faults like normal, reverse, and strike-slip faults which describe how the rock moves. It also defines seismic wave types like P-waves and S-waves, and explains that the focus is the point below the earth's surface where energy is released. Additionally, it defines the epicenter as the point above the focus on the surface, and magnitude as the power of an earthquake measured on the Richter scale.
![Fault ,[object Object]](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)