Plotting Earthquakes on a World Map: An Interactive Earth Science Activity for Grades 4-8, Study notes of Earth Sciences

Instructions for an earth science activity designed to increase student knowledge about plate tectonics by plotting earthquakes on a world map. The activity is suitable for students in classrooms, museums, and other educational settings, and can be done in the weeks leading up to the ShakeOut drill. Students will learn about plate boundaries and faults, and how earthquakes can occur anywhere, not just near faults.

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Developed for the ShakeOut by the Southern California Earthquake Center (www.scec.org).
1
EARTH SCIENCE ACTIVITY #4 Grades 4-8
Finding Plates by Plotting Quakes
This activity is one of several in a basic curriculum designed to increase student knowledge
about earthquake science and preparedness. The activities can be done at any time in the
weeks leading up to the ShakeOut drill. Each activity can be used in classrooms, museums, and
other educational settings. They are not sequence-bound, but when used together they provide
an overview of earthquake information for children and students of various ages. All activities
can be found at www.shakeout.org/schools/resources/.
Please review the content background (page 3) to gain a full understanding of the material
conducted in this activity.
OBJECTIVE:
For students to learn about plate tectonics by plotting earthquakes on a world map
MATERIALS/RESOURCES NEEDED:
Xpedition map for each student
List of Earthquakes for each student
Two different color pencils or crayons
PRIOR KNOWLEDGE:
In order to conduct this activity, students must know how to plot longitudinal and latitudinal
coordinates on a map.
ACTIVITY:
Set-Up (10 minutes)
Make enough copies of the Xpedition and List of Earthquakes handouts for each student. As an
alternative, the list of earthquakes can be placed onto a transparency to be used on a projector
or written on the board ahead of time. Give 2 colored pencils or crayons to students if they do
not already have them.
Procedure (40 minutes)
The italicized phrases are spoken suggestions for the instructor and those in parenthesis are
possible answers students might provide.
1. Begin a discussion by asking students if they have ever felt an earthquake.
Has anyone ever felt an earthquake? Please share your experience.
If none have ever felt an earthquake, ask “Do you know of anyone who has felt an
earthquake?”
2. Inform students about the activity they will conduct.
Earthquakes can happen almost anywhere in the world. We are going to plot where
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Developed for the ShakeOut by the Southern California Earthquake Center (www.scec.org). 1

EARTH SCIENCE ACTIVITY #4 Grades 4- Finding Plates by Plotting Quakes

This activity is one of several in a basic curriculum designed to increase student knowledge

about earthquake science and preparedness. The activities can be done at any time in the

weeks leading up to the ShakeOut drill. Each activity can be used in classrooms, museums, and

other educational settings. They are not sequence-bound, but when used together they provide

an overview of earthquake information for children and students of various ages. All activities

can be found at www.shakeout.org/schools/resources/.

Please review the content background (page 3) to gain a full understanding of the material

conducted in this activity.

OBJECTIVE:

For students to learn about plate tectonics by plotting earthquakes on a world map

MATERIALS/RESOURCES NEEDED:

 Xpedition map for each student

 List of Earthquakes for each student

 Two different color pencils or crayons

PRIOR KNOWLEDGE:

In order to conduct this activity, students must know how to plot longitudinal and latitudinal

coordinates on a map.

ACTIVITY:

Set-Up (10 minutes)

Make enough copies of the Xpedition and List of Earthquakes handouts for each student. As an

alternative, the list of earthquakes can be placed onto a transparency to be used on a projector

or written on the board ahead of time. Give 2 colored pencils or crayons to students if they do

not already have them.

Procedure (40 minutes)

The italicized phrases are spoken suggestions for the instructor and those in parenthesis are

possible answers students might provide.

1. Begin a discussion by asking students if they have ever felt an earthquake.

Has anyone ever felt an earthquake? Please share your experience.

If none have ever felt an earthquake, ask “Do you know of anyone who has felt an

earthquake?”

2. Inform students about the activity they will conduct.

Earthquakes can happen almost anywhere in the world. We are going to plot where

Developed for the ShakeOut by the Southern California Earthquake Center (www.scec.org). 2

some earthquakes have occurred on a world map to see if there are any connections

between them.

3. Distribute the materials to students.

a. Give instructions.

Use one of your colored pencils/crayons to draw a point where each earthquake took

place.

b. Model if necessary.

To plot the ordered pair 93E- 14N, I will take the first number: 93E. ‘E’ means east

and ‘W’ means west. Since I have 93 E, it will be on the right side of the map since

everything right of the center, 0 longitude (the prime meridian on the vertical lines), is

East. I will locate 93E on the number line and make a note of its location. Now, I will

find 14N. ‘N’ means north and ‘S’ means south. Since I have 14N, it will be on the top

half of the map since everything above the equator, 0 latitude (the lines going side to

side), is North. I will locate where 14N on the number line and make a note of its

location. Finally, I will place a dot in the intersection where these two imaginary lines

meet.

c. Let the students plot as many of the coordinates as possible given the time allotted

for the activity; the more points graphed, the more effective the message will be.

4. Once the students are done plotting earthquakes, they will connect the black dots.

Now, use your other colored pencil/crayon to connect the black dots.

On your map, find the alphabetical dots. Connect ‘A’ to ‘B’ and so on until you have

reached Q. Then do the same with the numerical dots starting with 1 going to 26. After

you are done connecting all the dots, trace over the dotted lines as well.

5. Instruct students to analyze the new dots they added and the new lines they drew.

Look at the new dots you added where the earthquakes occurred. Now look at the lines

you traced. Do you see any links between them? (The new dots are close to the lines)

6. Inform students about the plotted earthquakes.

As you have noticed, the dots you added fall along, or near, the lines you drew. These

lines represent plate boundaries. At these plate boundaries are faults, which are cracks

in the earth’s crust where movement has taken place.

7. Explain how earthquakes can occur anywhere.

Although earthquakes occur more often near faults, they can occur in other areas as

well. Earthquakes can affect people in many different ways, not just from the shaking. If

there was an earthquake in the ocean, how can someone who leaves near the coast be

affected? (Tsunami)

What about people who live in the mountains? (Landslides)

8. Find the proximity of a plate boundary to the location of the school.

Can you find where we live? Place your finger on the map.

Are we near a plate boundary? (Answers vary)

Is it important for us to prepare? (Yes) Why? (Earthquakes can almost occur anywhere.)

Significant Recent and Historic Earthquakes

  • 1 93 E 14 N 7.6 08/ No. Longitude Latitude Magnitude Date
  • 2 78 W 13 S 7.2 11/
  • 3 149 E 45 N 7.0 01/
  • 4 118 W 34 N 6.7 1/
  • 5 72 W 33 S 6.6 03/
  • 6 17 W 66 N 6.4 01/
  • 7 19 W 0.1 S 6.4 07/1
  • 8 138 E 35 N 6.4 08/
  • 9 158 E 10 S 6.2 11/
  • 10 125 E 24 N 6.1 08/
  • 11 78 W 10 N 6.1 04/
  • 12 41 E 43 S 6.1 02/
  • 13 166 E 45 S 6.0 08/
  • 14 137 E 4 S 6.0 09/
  • 15 167 E 15 S 5.9 12/
  • 16 161 W 63 S 5.8 08/
  • 17 55 W 17 N 5.8 12/
  • 18 171 W 52 N 5.8 12/
  • 19 149 E 59 S 5.6 12/
  • 20 108 W 10 S 5.6 05/
  • 21 76 W 52 S 5.6 09/
  • 22 45 W 23 N 5.6 06/
  • 23 92 W 14 N 5.5 05/
  • 24 177 E 39 S 5.5 03/
  • 25 107 W 35 S 5.4 12/
  • 26 22 E 40 N 5.2 07/
  • 27 8 5 E 8 N 5.2 04/
  • 28 103 E 6 S 5.1 10/
  • 29 26 W 56 S 5.1 09/
  • 30 2 W 80 N 5.0 03/
  • 31 95 W 3 N 5.0 12/
  • 32 76 W 4 N 5.0 03/
  • 33 13 W 18 S 5.0 07/
  • 34 129 W 49 N 4.9 03/
  • 35 145 E 12 N 4.7 09/
  • 36 117 E 50 S 4.5 05/
  • 37 122 E 0.5 S 4.4 12/
  • 38 46 E 12 N 4.3 08/

                                       

 17 Q P C B A K L M I H E F G 15 N 13 12 11 23 24 (^5 ) 9 8 4 6 3 2 1 25 20 18 19 26 16 O 14 J D 22 10 21 Map Adapted From:

WORLD MAP

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