Tsunami documentary for the East Coast US from Canary Islands

9,300 tremors have rattled the island of El Hierro since July 2011
October 7, 2011 -- CANARY ISLANDS -- Intense swarms of tremors beneath one of the volcanic Canary Islands has placed residents of El Hierro on alert for a possible eruption. Spain's Instituto Geografico Nacional (IGN) reported the 9,300 seismic movements on the island since July 17 have caused measurable changes in the terrain. El Hierro's only eruption during recorded history was in 1793, when the Volcano de Lomo Negro vent rumbled for a month and produced lava flows. Seismologists say they don't know if the rising ball of lava causing the latest rumblings will break through the surface, but they have issued a "yellow" alert as a precaution. IGN Director Maria Jose Blanco told reporters that any eruption would most likely have a "low explosive value." Tremors about 50,000 years ago produced an enormous landslide that cascaded into the ocean, creating a large tsunami that probably reached the North American coast. -- Earth Week

More undersea eruptions off Canaries

Two more undersea volcanic eruptions have been identified off the coast of one of the Canary Islands making three in all.

Authorities have kept the island of El Hierro on high alert.

It began at the end of last month with a tremor of 3.4 magnitude prompting the evacuation of around 50 people.

http://www.euronews.net/2011/10/14/more-undersea-eruptions-off-canaries/

Canary Island Report : October 13, 2011

Update : El Hierro Volcano Canary Islands : Earthquakes and Magma On The Move 10/5/2011