At the time, however, only the people of Iceland knew the cause ​ — a local volcanic eruption of a kind that experts say occurs once every few centuries.
Kuid põhjust teadsid tol ajal vaid islandlased – leidis aset selline kohalik vulkaanipurse, mida asjatundjate sõnul tuleb ette üks kord mitme sajandi jooksul.