Pumice Field North of NZ

[Rangiroo]

A vast "raft" of volcanic rocks covering 10,000 sq miles (26,000 sq km) of ocean has been spotted by a New Zealand military aircraft.

A naval ship was forced to change course in order to avoid the cluster of buoyant rocks, located 1,000 miles off the New Zealand coast.

The unusual phenomenon was probably the result of pumice being released from an underwater volcano, experts said.

More here......

BBC News - Vast volcanic 'raft' found in Pacific, near New Zealand

[mbianka]

Interesting but, the other question is how far below the surface is the top of the volcano that released this stuff. I seem to recall a post here I believe that had a photo from a cruising yacht that came across a volcanic island breaking the surface where there was none before.