Do Earth quakes effect river formation?

In my experiement i tested to see if earthquakes effect the form of rivers. Once we mixed up the diatamatous earth we evenly spreaded it through out the container. We then put in two magnetic stirs. We let them spin for 20 seconds, and then we turned them off. We noticed that there was a little puddle where it the magnets were. In conclusion earthquakes are more likely to cause ponds and lakes unless there is a strong water current pushing the lake or pond along. If that is the case then it could cause a river to form.