Earth quakes in Iceland

We've been having some earth quakes in Iceland since yesterday. Well, usually we have some earth quakes every day but yesterday we had three earth quakes quite big, +3 on richter. That is quite some. I just noticed this on the news this morning but I felt something happening yesterday, the earth shaking. It is just so usual in my part of the country to get some earth quakes that I didn't think much about. But it is always interesting to know how big they are and we had those three more than 3 on richter. That is quite much.