1. Highlight the plate boundaries on the map.
2. Locate California, Alaska, and Northeast United States with a pencil then label and color.
3. Place a dot on your map to represent each of the first 10 earthquakes listed your printout.
Use the following legend (color codes):

Shallow earthquakes, less than 50 km                   (blue dot)
Intermediate earthquakes, between 50-200 km     (green dot)
Deep earthquakes, more than 200 km                    (black dot)

Draw Conclusions (What did you find out ? )  Record in earthquake journal.
 

1. Which area (s) had the most shallow earthquakes?
2. Which area had the most number of deep earthquakes?
3. Draw with a red pencil the ring of fire on your map.
4. Which earthquakes you plotted occurred near the ring of fire?
5. Describe how the depth of the earthquakes in California compare with those in the Northeast and  with those in Alaska.
6. Identify the type (s) of plate boundary for each region by observing the depth of the earthquake.  Draw a picture of the kind of plate boundary movement and explain your answer.