Another Iceland volcano?

MSNBC:

LONDON - A second, much larger volcano in Iceland is showing signs that it may be about to erupt, scientists have warned.

Since the start of the Eyjafjallajökull eruption, which caused cancellations of thousands of flights in Europe because of a giant ash cloud, there has been much speculation about neighboring Katla.

An initial research paper by the University College of London Institute for Risk and Disaster Reduction said: "Analysis of the seismic energy released around Katla over the last decade or so is interpreted as providing evidence of a rising ... intrusive magma body on the western flank of the volcano."

"Earlier seismic energy release at Katla is associated with the inflation of the volcano, which indicates it is close to failure, although this does not appear to be linked to seismicity around [the other volcano] Eyjafjallajökull," it added.

The initial report of a few weeks ago hinted that the two volcanoes are connected, one causing the other to go unstable. This report says they are unconnected. Makes me curious about the theory that should be discussed by now.