Eyjafjallajökull volcano is located on the Mid-Atlantic Ridge, a divergent plate boundary.

Here's why:

* Divergent Plate Boundaries: These boundaries occur where tectonic plates move apart. As they pull away, magma rises from the mantle, creating new crust and volcanic activity.

* Mid-Atlantic Ridge: This is a major underwater mountain range that runs down the center of the Atlantic Ocean. It marks the boundary between the North American and Eurasian plates (and the South American and African plates further south).

The eruption of Eyjafjallajökull in 2010 was a significant event due to its impact on air travel across Europe. The eruption released massive amounts of ash and dust into the atmosphere, leading to widespread flight cancellations.