[JimSEA]

Wasn't the last MSM generated tsunami scare in the Atlantic about a volcano related landslide in the Canary Islands?? Turned out by the time it would get to USA the threat would diminish but Africa and Europe could really get nailed.

At least by my scare tactics, we don't have to wait for an asteroid.

[stormer]

There are some that think the threat has been hyped However, there is good evidence of substantial events in the past.

From http://gsa.confex.com/gsa/2001ESP/finalprogram/abstract_7493.htm: "Erosion of volcanic oceanic islands by large scale landsliding is a well known phenomenon. Many hundred km3 of rock can be removed in a single event, leaving towering headwall scars, amphitheatre shaped depressions (many previously regarded as calderas), and massive dumps of debris offshore. Here we summarise one single event which removed a substantial portion of the Canary Island of El Hierro about 12-17,000 years ago. The initial landslide involved dislocation of about 180 km3 of rock from the north-western flank of the island; about 50% of the material was derived from subaerial sources. Avalanche deposits extend to 4000 m waterdepth, cover an area of 1500 km2, and have a thickness of 250-350 m. Blocks up to 1 km across occur on the seabed up to 65 km away from the island."

An event like this could represent a significantly disruptive situation on the US eastern seaboard.