The Canary Islands “ mega-tsunami ” scenario assumed a single, coherent, massive collapse block that reached a high velocity very quickly. Ocean floor mapping surrounding the Canary Islands, however, indicates that collapses instead occur in incremental or piecemeal fashion.
Then, canary islands tsunami threat update?
“The ongoing volcanic activity in the Canary Islands is not posing a tsunami risk for the United States or Canada, and the likelihood of it posing a future threat is remote, ” Susan Buchanan, Director of Public Affairs of the National Weather Service told Reuters via email on Sept. 30.
This of course begs the inquiry “How big are tsunami waves in the Canary Islands?”
And more locally, tsunami deposits found in the Canary island suggest waves in the past over 150 meters high ! Cumbre Vieja is the main volcano on the island of La Palma and has erupted recently causing large cracks to grow involving the significant motion of the western volcano flank.
When I was researching we ran into the inquiry “How accurate is the La Palma Tsunami model?”.
An answer is that MODELING OF LA PALMA TSUNAMI C05030 19 of 26 1000 m resolution grid predicts very similar results for the first four waves of the tsunami, we use the more accurate 500 500 m grid. Note that more important than controlling the exact form of the tail, dispersion has a significant effect on the leading waves.
Can We model tsunami propagation from a volcanic slope failure?
A rather conservative landslide scenario compared to other studies is proposed.
This movie below shows a physics-based computer simulation of a Mega Tsunami generated by a flank collapse of La Palma, Canary Islands. The movie focuses on the maximum expected runup of the waves on the shores of the Atlantic Ocean. Large collapses on volcanoes have generated tsunamis.
Could a hurricane cause a megatsunami in the Canary Islands?
A 2008 study examined this scenario and concluded that while it could cause a megatsunami, it would be local to the Canary Islands and would diminish in height, becoming a smaller tsunami by the time it reached the continents as the waves interfered and spread across the oceans. For more details see Cumbre Vieja criticism .
Does Canary Island collapse generate megatsunami?
The hypothesis that Canary Island collapse generates megatsunami is not universally accepted. This skepticism arises from the fact that island collapse may not have been catastrophic, instead, occurring slowly in numerous discrete small events rather than a single giant collapse.
A complex journey: the rise of magma to the surface. Active volcanic areas, such as the Canary Islands, bring magma from the depth to the surface. Oceanic volcanic islands: the tip of the iceberg of large volcanic buildings. Oceanic volcanic islands such as the Canaries represent the emerged part of large volcanic buildings. The danger of eruptions.
Geologists Dr. Simon Day and Dr. Steven Neal Ward consider that a megatsunami could be generated during an eruption of Cumbre Vieja on the volcanic ocean island of La Palma, in the Canary Islands, Spain.
Is the Canary Island volcano still erupting?
There is no prospect of the volcanic eruption in Spain’s Canary Islands ending “in the short or medium term”, experts said Wednesday after three-and-a-half weeks of activity.
But many houses are reportedly still covered in ash. Some 3,000 properties were destroyed by lava that now covers 1,219 hectares, according to the final tally by emergency services. More dangers ahead for La Palma after volcano eruption La Palma eruption.
My answer was the Cumbre Vieja volcano, on the Spanish island of La Palma, has been erupting for almost eight weeks and the streams of lava and ash are showing no signs of stopping.