Notes

he process by which an earthquake’s violent movement suddenly turns loose soil into liquid mud.
aftershock: An earthquake that occurs after a larger earthquake in the same area.
tsunami: A giant wave usually caused by an earthquake beneath the ocean floor.
base-isolated building: A building mounted on bearings that absorbs an earthquake’s energy.
2. What factors help geologists determine earthquake risk for a region? By determining where faults are active and where past earthquakes have occurred.
3. Why does the risk of quakes vary across the United States? Geologist
4. What are four ways that earthquakes cause damage? Four types of damage that an earthquake can cause are shaking, liquefaction, aftershocks, and tsunamis.
5. How does liquefaction cause damage during an earthquake? It sinks and pulls apart buildings.
6. How might heavy rain before an earthquake affect the danger of liquefaction?
7. How can you protect yourself during an earthquake? Some ways to protect yourself during an earthquake are by going in a bathtub and putting a mattress over yourself. Another thing you could do is to drop, cover, and hold.
8. What will happen to a base-isolated building when seismic waves strike the building during an earthquake? It would reduce the amount of energy that reaches the building.