Two earthquakes have been detected close to the Bardarbunga volcano in Iceland, according to the national meteorological service.
The first earthquake had a magnitude of 5.3 and occurred just after midnight local time (1am UK time), while a second weaker earthquake happened around 5:30 this morning.
Although there have been several small quakes, these are the largest measured since the beginning of the current phase of volcanic activity.
There are no signs of an imminent eruption although the possibility can not be ruled out, the Icelandic Met Office said.
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