Part 1. Earthquakes & Seismic Waves are vibrations produced by breaking rock 2. Large earthquakes release huge amounts of stored up energy as form of energy that travels through the lithosphere and Earth's interior. When an earthquake occurs, energy radiates in all directions from its source region, called 3. thethe spot in Earth's crust where a fault slips 4. The point on the Earth's surface directly above the earthquake hypocenter is called the 5. are smaller earthquakes of lesser magnitude that follow a major earthquake. 6. is the study of earthquakes. 7. are instruments that measure motion of the ground, including those of seismic waves generated by earthquakes and Selsmic e Tools GEOL 101 W 22. Which area of the US is a subduction zone like Chile? 23. Should we expect an earthquake along this subduction zone within the next 50 years? 24. Most earthquakes happen at what depth beneath our feet? 25. Approximately how many earthquakes of magnitude 8 or greater happen each year? 26. P waves travel at what speed? 27. It is possible to give an earthquake early warning. Page 2 of 2