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Earthquake Vocabular
Basic vocabulary for introducing earthquakes
| Question | Answer |
|---|---|
| What is the process that changes a rock's shape or volume due to stress? | Deformation |
| What is it called when a rock has a bend due to stress? | Fold |
| What is it called when there is a crack in the rock along which the blocks of crust on either side have moved? | Fault |
| What is it called when rocks/plates snap back into an unbent position? | Elastic Rebound |
| What is the term that describes a sudden and violent shaking of the ground due to movement along a fault called? | Earthquake |
| What is the point below the earth's surface where rock breaks or moves called? | Focus |
| Which term is described as the point on the earth's surface directly above where an earthquake starts? | Epicenter |
| What are the waves of energy released by an earthquake called? | Seismic waves |
| What wave travels forward in a straight, push-pull fashion and are the first to arrive at the epicenter? | Primary wave |
| Which wave travels in a snake like fashion, travel only through solids and are the second to arrive at the epicenter? | Secondary wave |
| Which wave is the slowest, most damaging seismic wave that rolls like ocean waves and originates at the surface of the earth called? | Surface wave |
| What is defined as an instrument that measures and records details of earthquakes? | Seismograph |
| What is the method that uses data from three seismographs at three different locations to locate an earthquake called? | Triangulation |
| What is the numerical scale(1 -10)called that measures the magnitude of an earthquake based on seismograph readings? | Richter scale |
| What is defined as the amount of energy that an earthquake releases? | Magnitude |
| What scale( I - XII) is used to measure the intensity of earthquakes based on observations gained following an earthquake? | Mercalli scale |
| What is defined as the amount of shaking that an earthquake causes? | Intensity |
| What are the lines that are used to locate an epicenter using Mercalli ratings? | Isoseismal lines |
| what is defined as a large wave created by an earthquake? | Tsunami |
| What are the small earthquakes that follow a larger earthquake called? | After shocks |
Created by:
sschenkel
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