Exercises

Earthquake Magnitude > Step One

So far we've examined maps of earthquakes plotted by time period and by depth; now we'll look at earthquakes by magnitude.

• If you don't have a QUEST window open, mouse over the Tools button along the top banner of this page. Scroll down to Web Tools and click on the Launch QUEST button (Unless it's open already).

• Next, click on the Menu button in the bottom left corner of the QUEST window.

• Click on Map Area and the map area window will appear.

• Next, select World in the Region pull down menu and click OK to close the window.

• Now,click on Data Sets (on the Menu button) and the Data Sets window will appear in the middle of your QUEST window.

• Select EARTHQUAKES from the pull down menu and then choose SELECT EARTHQUAKE CRITERIA.

• Next, you'll select an earthquake magnitude range begin by clicking on the Magnitude button and using the Minimum and Maximum text boxes to select a magnitude range. When you are finished click OK button in the blue window and the OK button in the tan Data Sets window. (Use a time period of one year, and reset the depth field to its maximum range, 0 - 700 km. For the larger events you might want to experiment with a time frame of two or more years.)

• Lastly, click on the GET MAP button and in a few moments your map will appear in the main map area (the Get Map text will turn red when your map has been submitted).
  

  Repeat this process for each of the following
  maps:

  Map 1 4.0 - 4.9
  Map 2 5.0 - 5.9
  Map 3 6.0 - 6.9
  Map 4 7.0 - 7.9
  Map 5 8.0 - 8.9

   

  Discovery Topics > Earthquakes > Earthquake Magnitude > Step One <