No, Iceland is on a constructive plate boundary.
No but is it on a divergent plate boundary
The Bárðarbunga volcano in Iceland (currently erupting) is an example. A diverging plate boundary passes through the island of Iceland.
Iceland sits atop two plates, the Eurasian Plate and the North American Plate, also referred to as the Mid Atlantic Ridge.
Eyjafjallajokull volcano is located on the divergent boundary between the North American Plate and the Eurasian Plate in Iceland.
Iceland is situated on a divergent plate boundary known as the Mid Atlantic Ridge. Please see the related links.
Eldfell is located on a divergent plate boundary, specifically along the Mid-Atlantic Ridge on the island of Heimaey in Iceland.
Iceland sits on the boundary between the North American plate and the Eurasian plate.
Iceland is located on the Mid-Atlantic Ridge, which is a divergent plate boundary. This means that the North American and Eurasian tectonic plates are moving apart, causing volcanic activity and creating new crust in Iceland.
Eyjafjallajökull is located on the boundary between the Eurasian Plate and the North American Plate in Iceland.
Iceland is located on the Mid-Atlantic-Ridge. This is a divergent tectonic plate boundary.
They can occur anywhere. For example the Hawaiian islands are caused by a hot spot thought to be created by a mantle plume and they are a very large distance away from any plate boundary. However some geophysicists also believe that Iceland sits atop a hotspot that is also caused by a mantle plume that coincidentally coincides with a tectonic plate boundary (the Mid-Atlantic-Ridge).