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Seismology
Contributed by: MacKenzie
  • 1. Seismology is the scientific study of earthquakes and the propagation of seismic waves through the Earth. It involves the investigation of the internal structure and dynamics of our planet by analyzing the vibrations and movements caused by seismic activity. Seismologists use a variety of methods, such as seismographs, to detect and measure earthquakes, as well as to better understand the causes and effects of these natural phenomena. By studying seismology, researchers can gain valuable insights into the Earth's geology, tectonic plate movements, and potential hazards posed by earthquakes.

    Which instrument is used to detect and record seismic waves?
A) Oscilloscope
B) Thermometer
C) Barometer
D) Seismometer
  • 2. What scale is commonly used to measure the magnitude of earthquakes?
A) Metric scale
B) Fahrenheit scale
C) Volt scale
D) Richter scale
  • 3. What causes an earthquake?
A) Magnetic field disturbances.
B) Volcanic eruptions.
C) Heavy rainfall.
D) The sudden release of stress along faults in the Earth's crust.
  • 4. What is liquefaction in relation to earthquakes?
A) The expansion of the Earth's crust.
B) The process in which soil temporarily loses strength and behaves like a liquid.
C) The cooling of the Earth's core.
D) The creation of new landmasses.
  • 5. What is the minimum number of seismograph stations needed to locate the epicenter of an earthquake?
A) One
B) Ten
C) Five
D) Three
  • 6. Which seismic wave has the slowest velocity?
A) Surface wave
B) L-wave
C) P-wave
D) S-wave
  • 7. What is different about a seismogram recorded in a seismically quiet area compared to one recorded in a seismically active area?
A) The amplitude of the seismic waves will be higher in a quiet area.
B) In a seismically quiet area, there will be fewer seismic events recorded compared to a seismically active area.
C) The seismogram will be longer in a quiet area.
D) The seismogram will be blank in a quiet area.
  • 8. What type of fault is created by compressional stress?
A) Transform fault
B) Reverse fault
C) Strike-slip fault
D) Normal fault
  • 9. What is the Mohorovičić discontinuity?
A) The point above the epicenter of an earthquake.
B) The area with the most intense seismic activity.
C) The boundary between the Earth's crust and mantle.
D) The point of origin of an earthquake.
  • 10. What is the term for a sudden slip on a fault, releasing accumulated stress?
A) Volcano
B) Earthquake
C) Tsunami
D) Hurricane
  • 11. What are seismic waves?
A) Vibrations that travel through the earth
B) Waves created by thunderstorms
C) Waves caused by solar flares
D) Waves found in the ocean
  • 12. What is the study of ancient earthquakes called?
A) Paleoseismology
B) Archeology
C) Botany
D) Meteorology
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