[Phsstpok]

Total nonsense.

Thank you for your enlightening comments.

Now go pound sand if you're not going to contribute and only want to piss on other posts.

Got any evidence to offer that you're not simply an idiot? So far you got nothing.

And before I listen to word one from you at this point I will insist on you providing the name of the institution where you got your post graduate degree in any subject even remotely related to this.

I'm willing to listen to anyone who provides links and citations.  Good bad or indifferent those are things open to interesting discussion.

Posts like yours are beyond useless and flag the poster as a useless tool and  complete twit to be avoided on any subject, not just the one in question.

And if you wish to argue about the post I made please take it up with the international institutions, recognized scholars or world renowned research facilities where my citations came from.  Your citations?  Oh, that's right, you didn't post any.  You just vomited in public.

I suggest you clean that up before moving on with your life.

It's an "intellectual discussion."  Moronic declarative statements with no substantiation and no evidence for judging the source are beyond useless.  They are actively insulting to everyone on the thread, whether they agree or disagree with the post I make.  Be ashamed.  Be very ashamed.

You naughty boy you.

I've had some interesting discussions with you in the past.  Are you off of you meds again?

[Strategerist]

Actually the whole "Cumbre Vieja will collapse and annihilate the East Coast" thing has been almost completely debunked - basically the entirety of the Tsunami Research community has destroyed the wildly overestimated wave heights that would result from the collapse on the East Coast of the US (avalanche tsunamis do not propagate their energy well over LONG distances, relative to earthquake tsunamis) and recent scholarship has attacked the idea that Cumbre Vieja is on the verge of a large-scale collapse at all.

The only problem is the mainstream media and popular documentary makers ONLY focused on the initial claims by Simon Day, because they were so scary and exciting, and ignored everyone who came after who disagreed.

[Slicksadick]

I brought up long run-out landslides a few hundred posts back. Here is some new info on them...note the lagre blocks north west of Oahu. Imagine the impact on the California coast.

Hawaiian landslides

Debris from enormous landslides off Oahu and Molokai extends hundreds of kilometers Map © 2001 MBARI

Larger version Pali above Kane'ohe Bay on Oahu: the slide-scarp of the Nuuanu landslide Photo © 2004 J.B. Paduan

Hawaiian landslides have been catastrophic

Volcanic activity and gentle erosion have not been the only forces to shape the Hawaiian islands. Landslide debris has now been mapped off of all the islands. Enormous amounts of material have traveled great distances, indicating that the slides were truly catastrophic. The Nuuanu and Wailau landslides, shown in the map, tore the volcanoes forming eastern Oahu and northern Molokai, respectively, in half, and deposited blocks large enough to have been given names as seamounts. Tsunamis generated during these slides would have been devastating around the entire Pacific Basin.

Our research on Hawaiian landslides

The discussions below are paraphrased from abstracts of papers published by the Submarine Volcanism group.

Geologic history of Wai'anae Volcano

OAHU - Wai'anae Volcano comprises the western half of O'ahu Island, but until recently little was known about the submarine portion of this volcano. Seven submersible dives conducted in 2001 and 2002, and multibeam bathymetry offshore of Wai'anae provide evidence pertaining to the overall growth of the volcano's edifice as well as the timing of collapses that formed the Wai'anae slump complex. 

A prominent slope break at ~1400 meters below sea level marks the paleoshoreline of Wai'anae at the end of its shield-building stage and wraps around Ka'ena Ridge, suggesting that this may have been an extension of Wai'anae's northwest rift zone. Subaerially erupted tholeiitic lavas were collected from a small shield along the crest of Ka'ena Ridge, now submerged. To the south, tholeiitic pillow lavas have been recovered 65 km from the volcano's center, indicating the south rift zone extended at least this distance. Sediment cores collected from north of Ka'ena Ridge contain pelagic sediment with volcaniclastic grains and volcanic glass that originated from Wai'anae's postshield stage and eastern Oahu's Ko'olau Volcano's shield stage, respectively.

Multiple collapses and deformation events occurred during and after the shield stage, resulting in compound mass wasting features on the volcano's southwest flank, the Wai'anae slump complex. This slump complex is the largest in Hawai'i, covering an area of ~5500 km².  It is composed of several distinct sections based on morphology and lithologies of collected samples. The outer bench of the slump complex contains tholeiites that correlate with subaerial lavas erupted early during the volcano's shield stage, from 3.9 to 3.5 million years ago (Ma), and probably formed during and shortly after the early shield stage. To the southwest of the outer bench lies a broad debris field of subaerially derived volcaniclastic rocks containing tholeiites with early shield compositions, interpreted to have formed by a catastrophic collapse event that breached the outer bench. The breach may have then been filled by slumping material from the main volcanic edifice.  Finally, on top of the northern main body of the slump is a rotated landslide block that detached from the proximal part of the Ka'ena Ridge after the volcano's late shield stage (3.2 to 3.0 Ma), containing higher alkali rocks that correlate with late shield-stage subaerial lavas. None of the slump complex samples correlate with alkalic subaerial postshield lavas.