At 04:03 UTC on 29.01.2013 an magnitude 3.2 earthquake did happen at TFZ. This earthquake was not felt according to news on this earthquake. Several aftershocks where detected following this magnitude 3.2 earthquake.
There is a lot of tension in TFZ. But this earthquake swarm does not mean it is ready to break yet. When that happens is impossible to know at this time. Earthquake detection is difficult in Iceland at the moment due to bad weather and strong winds.