during a future unascertained eruption, 
the western half of the Cumbre Vieja - 
approximately 500 km3 (5 x 1011 m3) with an 
estimated mass 1.5 x 1015 kg, will 
catastrophically fail in a massive gravitational 
landslide and enter the Atlantic Ocean 
generating a so called "mega-tsunami." The debris 
will continue to travel - as a debris flow, 
along the ocean floor. Computer modelling indicates 
that the resulting initial wave may 
attain a local amplitude (height) in excess of 600 metres 
(1,969 ft) and an initial peak to 
peak height that approximates to 2 kilometres (1 mi), 
and travel at about 1,000 kilometres 
per hour (621 mph)