There is a humorous video at the link below dealing with the pronunciation of the Icelandic volcano.
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However you pronounce it, Eyjafjallajokull is proving difficult for the world's English speakers.
Actually the pronunciation depends on whom you ask. Below are three suggestions from news services:
CNN: "AY-yah-FYET-lah-YOH-koot."
Chicago Tribune: "EY-ya-fyat-lah-YOH-kuht."
NPR: "AY-yah-fyah-lah-YOH-kuul."
We like the approach by the military: “E-15.”
The explanation for the military version is “E is for the first letter and 15 refers to the next 15 letters in Eyjafjallajokull.
However you pronounce it, it's a mouthful that is really three words in Icelandic meaning island mountain glacier.
Link