Eyjafjallajökull volcano, located in southern Iceland, is a subglacial volcano known for its 2010 eruption that caused chaos in European airspace. The eruption started with small earthquakes in January and escalated to lava fountains and ash plumes by April. The melting glacier ice led to flooding and the closure of airspace due to the ash cloud. This volcano may have a tricky name to pronounce, but its impact on air travel was definitely felt!