An earthquake of magnitude 4 shook Southwest Iceland at 11:40 am today, RÚV reports. It was measured at five km below the surface. Although the quake was felt in downtown Reykjavík, however, it was actually part of a wave of seismic activity that originated around Fagradalsfjall mountain on the Reykjanes peninsula.
According to a source who works in the Reykjanes town of Grindavík, there were two separate quakes. The first was small enough that it wasn’t even felt by some people in the area. The second came ten minutes later and was far more noticeable. No damage has been reported.