Graphs of the Number of Earthquakes Per Year at Yellowstone
The plots below represent a years worth of earthquake activity at Yellowstone. They show the number
of earthquakes per day versus time.
The maximum value of both the left and right y-axes change
depending on the number of events for that year. The red line shows the cumulative number of
earthquakes and corresponds to the number on the right-side y-axis. Click on the graph to see a
larger image.