February 2022 Internal Newsletter

Down: 2. Huge waves in the oceans caused by 3. A number that characterizes the relative size of an earthquake 5. State with the most earthquakes 7. Country where the biggest earthquake was recorded 9. An internal wave oscillating in a body of water 11. The longest recorded earthquake lasted ___ minutes Across: 1. _____ adds rigidity to the equipment frame. It is a common enhancement done when equipment does not initially pass a seismic test. 4. The layer of earth where earthquakes occur 6. The continent with the least earthquakes 8. Related to vibrations of the earth and its crust 10. One of the two states with the fewest earthquakes 12. Shaker table used in seismic vibration testing to demonstrate an equipment’s compliance