Originally Posted by Vagrant Storm
Plate movements make mountains, trenches and continents over millions of years...not spontaneous islands the size of my back yard. Though I am not going to deny that it is possible...just that there are probably a thousand other things that would cause it first. I am sure as soon as the earthquake relief efforts are in hand there will be some one there to study it.
Though it's obvious that it was actually always there and it was a hang out for the "Silent" so any time some one saw the island they immediately forgot it. When the earth quake came they said lets get the heck out of here and now we discovered an island. True story.
I believe this island is made of rock, though I suppose the mud could have pushed up a good hunk rock with it...with aftershocks as large as they were there was a whole lot of shaking going on.
Sirens....haha that explains it. It is entirely possible for it to suddenly appear though. Same kind of process that forms a trench suddenly just in reverse. There are places where you have 4 to 10 foot berms that form quickly. from strike slips Something the size of the island would be a one in billion shot though. Unfortunately it isn't rock and it isn't very big either. No more than 50 to 80 ft high from seafloor if the depth charts I have are correct and 100 ft long by 30 ft. Rather small compared to the other mud volcanoes in the area.
Same thing has happened there before once in the 1940s and again in 1968. Imagine your skin as the sea floor and you pinch it together you will see a little area rise. Do it hard enough and you will squeeze fluids out making it rather hard in comparison to the rest of your skin. Same process except with a earthquake doing the pinching. The amount of pressure needed to squeeze water out of saturated sea floor alluvial deposits is mind boggling on that scale though. <- Coming from someone finishing a Ph.D. in Hydrology/Engineering