For example, are you asking about:
* The recent eruption of Mount Fagradalsfjall? This eruption had minimal direct impact on Iceland itself, but caused some disruption to air travel and attracted tourists.
* The 2010 eruption of Eyjafjallajökull? This eruption caused widespread disruption to air travel across Europe, impacting Iceland's economy and tourism.
* The 1783-84 eruption of Laki? This eruption had devastating consequences for Iceland, causing widespread famine and death.
Once you specify the volcano you're interested in, I can provide you with a more accurate and detailed answer.