Icelandic Rúv broadcaster reports that a few volcanoes in Iceland are ready to start erupting at any time with little warning. The volcanoes on top of the list are the volcanoes Grímsvötn (Grímsfjall) and Hekla. According to this news they are expecting that a Grímsvötn are going to erupt sometimes in the coming winter. In this news they also say that there are 35 active (dormant) volcanoes that can erupt at any time in Iceland. But some volcanoes are more ready then others to start erupting.
The news can be found here in Icelandic (Windows Media Player required to view the video).