Icelandic media are reporting audible rumbles from Eyjafjallajökull sunday evening.
Earthquake activity is not up, though over the last few weeks there have been some small tremors under the glacier.
No sign of an actual eruption, and no sign of activity under her big sister, Katla.
There is a spike in earthquake activity at the northern edge of Vatnajökull by Kistufell.
There are frequently surges of activity up there, it is right along the major line of the North Atlantic Ridge as it goes across the island, and there are at least three major active volcanoes right along there, including Bárðarbunga, which is Europe's largest volcano. Which has been showing some uplift in recent years.
But, no worries.