EARTH SCIENCE
EARTHQUAKES
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A seismograph
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A seismogram
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A seismologist
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A seismic wave
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Detailed explanation-1: -A record produced by a seismograph on a display screen or paper printout is called a seismogram. Although originally designed to locate natural earthquakes, seismographs have many other uses, such as petroleum exploration, investigation of Earth’s crust and lower layers, and monitoring of volcanic activity.
Detailed explanation-2: -This record made by the seismograph is called a seismogram.
Detailed explanation-3: -A seismograph is a machine which measures an earthquake.
Detailed explanation-4: -The paper recording of an earthquake is called a seismogram.
Detailed explanation-5: -Because P waves are the fastest seismic waves, they will usually be the first ones that the seismograph records. The next set of seismic waves on the seismogram will be the S-waves. These are usually bigger than the P waves, and have higher frequency.