Aftershocks & Foreshocks of an Earthquake


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question 1 of 3

Geologists measure three different earthquakes on their seismographs within a few days. One quake registered at 4.2, one at 3.6, and the other at .3. Which quakes would most likely be the foreshock, the main earthquake and the aftershock?

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1. Why do earthquakes occur?

2. Geologists measured an earthquake at 3.8, but then measured another earthquake a day later at 4.6. How would a geologist analyze this situation?

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About This Quiz & Worksheet

This quiz/worksheet combo will help you assess your understanding of earthquake effects and information about tremors before and after a main quake. You will need to know details about foreshocks and aftershocks in order to pass the quiz.

Quiz and Worksheet Goals

In these assessments, you'll be tested on:

  • The ability to recognize facts about foreshocks and aftershocks
  • Overall facts about earthquakes
  • What is used to measure seismic activity
  • When foreshocks and aftershocks occur, respectively

Skills Practiced

This worksheet and quiz will allow you to test the following skills:

  • Reading comprehension - ensure that you draw the most important information about what causes ground shaking events before and after earthquakes
  • Critical thinking - apply relevant concepts to examine information about earthquakes in a different light
  • Interpreting information - verify that you can read information regarding the causes of earthquakes and interpret it correctly
  • Information recall - access the knowledge you've gained regarding the effects of foreshocks and aftershocks

Additional Learning

To learn more about earthquakes , review the accompanying lesson called Aftershocks and Foreshocks of an Earthquake. This lesson covers the following objectives:

  • Explain how earthquakes happen
  • Define foreshocks and aftershocks
  • Discuss the measurement of seismic activity
  • Detail the impact of foreshocks and aftershocks