Katla waking up?
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Just to add more fun... there was an earthquake below the Katla volcano within the last 12 hours. If Katla wakes up (which it surely will based on history) all the current fun and games will look like kiddy stuff.
There have been instances where Katla has erupted shortly after Eyjafjallajokull, but it is by no means a regularity. Such eruptions have tended to be on the smaller side. The indicated quake you referred to appears to be a fluke. It is shown at 200 meters above the surface and a quality (of measurement) index of 37%. This is unedited data and gets corrected all the time. Donīt read to much into it.