No there isn't, but if you go to each of your hubpages once you signed in you can go to the top of each individual Hubpage and click on 'stats'.
This will bring up all the stats for that particular hubpage
Over time it will provide keywords used to get to your Hub and any keywords used that are not in your hub as well as traffic sources.
This is a great tool to fine tune your hub over time to get better performance from your hubpage or even get ideas for writing complimentary hubs.
Hope I have been helpful.