London, Nov 28 (IANS) An erupting volcano forced a gigantic 1,000 tonne boulder down the mountainside onto a valley floor in Iceland.

The huge boulder, standing more than 50 feet high, dwarfs the landscape where it came to rest earlier this year.

The melting glacier caused a flood, which swept the rock down the mountainside with it.

Clouds of ash spewing from fissures in the volcano caused travel chaos across Europe for months as flights were grounded and holiday makers were left stranded, reports the Daily Mail.

Icelandic photographer Ragnar Sigurdsson spent weeks capturing the dramatic scenes as the volcano continued to erupt. He also flew over the bubbling crater.

He captured more than 10,000 images of the volcano as red hot lava was thrown into the air and compiled three book volumes.

Sigurdsson, 52, chose to fly into the epicentre of destruction on a mission to record the spectacular wrath of one of nature’s most deadly phenomena.

He and geologist co-writer Ari Trausti Gudmundsson have now made a selection from 10,000 of Ragnar’s pictures of the catastrophe.

Interest generated by their first two sell out editions of ‘Eyjafjallajokull: Untamed Nature’, spurred the duo to add new personal accounts, giving a fresh insight into the drama, in their new third edition.