To calculate the average rate of movement of the Pacific Plate, you'll need the distance the plate has moved and the time over which it has moved. The formula to calculate the average rate of movement is:
\[ \text{Average Rate} = \frac{\text{Distance}}{\text{Time}} \]
Please provide the specific distance the Pacific Plate has moved (in centimeters) and the time period (in years) to calculate the average rate.