The undersea volcano, Marsili, off the coast of Italy is worrying volcanologists. It has a large magma chamber that is structurally weak. On Monday experts warned that the chamber could collapse at any time sending a tsunami toward the coast of Italy and Sicily.

See report in http://www.telegraph.co.uk/news/worldnews/europe/italy/7535373/Volcano-tsunami-could-sink-southern-Italy-at-any-time.html
Photo: http://www.flickr.com/photos/habi/205206549/

Further reading: http://www.telegraph.co.uk/news/worldnews/europe/italy/7535373/Volcano-tsunami-could-sink-southern-Italy-at-any-time.html

KJC