Seismologists assign values for the amount of energy and the damage caused during an earthquake. We use the term magnitude to describe the energy and intensity to describe the observations that are seen or felt. Magnitude is measured using the Richter scale and intensity is measured using the Modified Mercalli scale. In class today we used the scale to assign a value based on observations from 28 cities. Once that was completed we were able to locate the zone for each value by encircling the towns for each value.
Homework! Use your map on pg 23 to write your summary on pg 22. Be sure to answer the following questions in your summary:
• What cities were closest to the epicenter of the earthquake?
• Approximately how wide was the zone with a rating of a V or higher?
• How were you able to determine all of this? (What did you do?)
• Discuss some possible sources of error when working with the Mercalli scale to locate the epicenter of an earthquake.
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