Seismic sequence at Eyjafjarðaráll. The map shows the earthquakes which occurred 19-20 September 2012 as white dots, 20-26 October as red dots and 23-25 October as green dots. The M5.6 event is marked as a black star. The blue circle shows the area of the cluster that was detected 23-25 October further east of the main cluster. Tectonic faults are shown as black lines.