How Are Earthquakes Related to Plate Tectonics?
ES1001  Earthquake Magnitude

Magnitude is a measure of the energy released during an earthquake. The Richter scale and the moment magnitude scale are both used to indicate earthquake magnitude. Earthquake magnitudes on these scales range from 1–9.

  !   Click the buttons below to see the distribution of earthquakes in each magnitude range.

Jennifer Loomis, TERC

6. Which magnitude range has the greatest number of earthquakes?
Which has the fewest?

7. Which type of plate boundary experiences the most earthquakes with large magnitudes? Hypothesize about why that type of boundary experiences larger earthquakes than the others.

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