Assuming the data are accurate (e.g. we are no more able to record quakes today than we were 100 years ago due to tech improvements), then that would seem to be

Assuming the data are accurate (e.g. we are no more able to record quakes today than we were 100 years ago due to tech improvements), then that would seem to be the case. It would be interesting to show a map of only 5-6 quakes overlaid on a map of fraking locations.