The Black Plague did not affect Iceland until 1402; Fifty years after the original Black Death eruption. This may indicate it was a different strain of disease. It killed around 50% of Iceland's inhabitants.
Source: http://books.Google.com/books?id=9_GfdBAASUQC&lpg=PA16&ots=RrqvNL_3K3&dq=%22black%20plague%22%20%2Biceland&pg=PA20