Understanding Earthquakes
This worksheet covers the fundamental concepts of earthquakes, including their causes, types of waves, measurement, and societal impacts, suitable for Grade 12 science students.
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Understanding Earthquakes
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Read each question carefully and provide thoughtful answers based on your understanding of earthquake phenomena. Refer to the provided diagram where applicable.
1. Which type of seismic wave travels fastest and arrives first at a seismograph station?
S-waves
P-waves
Love waves
Rayleigh waves
2. The point on the Earth's surface directly above the focus of an earthquake is called the:
Epicenter
Hypocenter
Fault line
Seismic gap
1. The instrument used to detect and record seismic waves is called a .
2. The sudden release of energy that causes an earthquake is due to the rapid movement along a .
1. Explain the difference between magnitude and intensity when describing an earthquake.
2. Describe the primary hazards associated with large earthquakes, aside from ground shaking.
Refer to the diagram below to answer the following questions.
1. Identify and briefly describe the labeled components of the earthquake diagram (e.g., A, B, C).
2. Based on the diagram, where would you expect the most significant damage to occur?
1. Tsunamis are always caused by earthquakes.
True
False
2. The Richter scale accurately measures the total energy released by an earthquake.
True
False