Yesterday (26-April-2014) and today (27-April-2014) an minor earthquake swarm took place in Bárðarbunga volcano. I am not sure if this earthquake activity is due to dike intrusion or normal tectonic activity.
Minor earthquake swarm in Bárðarbunga volcano. Copyright of this belongs to Icelandic Meteorological Office.
This area of Bárðarbunga volcano is well known for high earthquake activity. If this is an dike intrusion as is an possibility, it does not increase the risk of an eruption, since dike intrusion without starting an eruptions are a common feature in Icelandic volcanoes.
Yesterday (26-April-2014) and today (27-April-2014) an minor earthquake swarm took place on TFZ not far from an island named Flatey. This was a small earthquake swarm and largest earthquakes had an magnitude around 2,0.
The minor earthquake swarm on TFZ. Copyright of this image belongs to Icelandic Meteorological Office.
It is difficult to know if this earthquake activity is going to continue. Earthquake activity at this location is only tectonic based, this area of Iceland is volcano free.
Yesterday (26-April-2014) and today (27-April-2014) an earthquake swarm started on the Reykjanes Ridge (no GVP profile) in a submarine volcano south of Reykjanes volcano (I wrote about it few days ago here). This earthquake swarm was at the same location as an earthquake swarm that took place there on 13-April-2014 and I wrote about it here. There are clues pointing towards that magma might have been the reason for the earthquake swarm on the 13-April-2014. It has not been confirmed due to remote location of this volcano, observations are also limited due to depth of the ocean at this location (about 1 to 2 km depth is at this location).
The earthquake swarm on the Reykjanes Ridge. Copyright of this image belongs to Icelandic Meteorological Office.
Its difficult to know what is happening. Currently the earthquake swarm has continued, but with it stops for shorter or longer period of time at current time. I do not know why that is. So far everything has been quiet tremor wise on the closest SIL stations to this location. The closest SIL stations are some 35 to 45 km distance. I expect more earthquake activity to take place at this location in next few days to weeks. It is impossible to know if an eruption is going to take place out there in the ocean at current time.