La Palma is rumbling - What are the implications of a 40 foot Tsunami along the east coast?

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I’m glad we all came here to doompost about a megatsunami and now were just mesmerized by how fucking cool the volcano is.
 
If this does go boom like krakatoa, we will all here it, yanks, brits and african nogs alike.

I wonder how many pages this thread will get to if there is a loud bang heard around the world...
Unfortunately, Cumbre Vieja is a shield volcano, meaning that a big boom is unlikely. Shield volcanos are runny whereas stratovolcanoes have large eruptions. Krakatoa is a stratovolcano, as are most other famous less active volcanoes.
 
Pretty sure based on Earthquake info a new volcano is about to emerge about 1 or 2 km south of the one that exists now

Not a sure thing but dont be suprised in the morning, there is a series of earthquakes in that area that are coming closer and closer to the surface

somewhere in this red circle...this would significantly increase the odds of that flank collapsing
Screenshot 2021-09-27 222017.jpg
 
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If this does go boom like krakatoa, we will all here it, yanks, brits and african nogs alike.

I wonder how many pages this thread will get to if there is a loud bang heard around the world...
This is a volcano produced by either a hotspot under minor faulting or faulting over a minor hotspot. They don't do the big kaboom very often. The magma needs to burn it's way up through a silica-rich continental plate for that either by a hotspot (Yellowstone Caldera) or an ocean plate subducting under it offshore (Ring of Fire). This is burning upward through thin low-silica deep ocean plate. Hawaii and Iceland, basically.

This is also why we get all the pretty pictures and the photographers are not dead. Pyroclastic flows are a motherfucker. RIP David A. Johnston USGS.
 
This is a volcano produced by either a hotspot under minor faulting or faulting over a minor hotspot. They don't do the big kaboom very often. The magma needs to burn it's way up through a silica-rich continental plate for that either by a hotspot (Yellowstone Caldera) or an ocean plate subducting under it offshore (Ring of Fire). This is burning upward through thin low-silica deep ocean plate. Hawaii and Iceland, basically.

This is also why we get all the pretty pictures and the photographers are not dead. Pyroclastic flows are a motherfucker. RIP David A. Johnston USGS.
Correct on the volcano not being the type

But You would hear and feel any landslide tho. People in India heard krakatoa...this would be several magnitudes that. Even in florida i would probably feel a thud
 
Man, I can't get this outta my mind now - Normally when the world blueballs us on an apocalypse, it takes one step towards it and then nothing happens, or it actively starts walking in the other direction while teasing "but maybe it could take a step back".

But nah, this ones really pushing forward. I'm up in mountainous terrain, so I'm not worried bout drowning in it, but this did get me to go over and do a proper count of what I need to replace since I stocked up on emergency goods back when nobody knew how bad the coof would be. Whether it decides to go off or not, I think its firmly put my brain back into "better prepare for an apocalypse" mode.
 
Correct on the volcano not being the type

But You would hear and feel any landslide tho. People in India heard krakatoa...this would be several magnitudes that. Even in florida i would probably feel a thud
Since this thing is squirting out lava I think we can safely discard the "massive earthquake landslide tsunami" fears. The pressure is being relieved. Not growing. Meaning no island-shattering magma displacement.
 
Since this thing is squirting out lava I think we can safely discard the "massive earthquake landslide tsunami" fears. The pressure is being relieved. Not growing. Meaning no island-shattering magma displacement.
Eruption doesn't guarantee that pressure is being released faster than its being built up - it just means some of the island was weaker than the forces being exerted on it. The question is how much more pressure is coming, and how much more can the island handle.
 
Eruption doesn't guarantee that pressure is being released faster than its being built up
It pretty much does. What is the driver here? Why should it speed up?
- it just means some of the island was weaker than the forces being exerted on it.
Yes. And venting pressure.
The question is how much more pressure is coming, and how much more can the island handle.
As much as what has built up in the magma chamber and all of it. This isn't a kaboom-type eruption.

Volcanoes go through stages of activity. Eruptions are when it vents off the pressure. At most it becomes a Kilauea situation where it just keeps oozing because it's plumbing connected all the way down through the crust. This one will probably stop here in a bit once the magma chamber exhausts itself for this round, the plumbing solidifies, and the cycle starts over again. It's how these things work.
No we cant
Whatever you say Mister "Lava tubes are 10000km long and reach across continents".
 
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Since this thing is squirting out lava I think we can safely discard the "massive earthquake landslide tsunami" fears. The pressure is being relieved. Not growing. Meaning no island-shattering magma displacement.
Listen buddy, the pressure from the magma build-up is going to launch the entire island 5km into the sky and back down into the ocean which will generate a 350m wave which will ackychually gain power as it races across the Atlantic destroying the entire eastern seaboard, meanwhile the worldwide magma tubes will set of a chain reaction that causes Yellowstone to go off and also the entire Pacific Ring of Fire all at once. The rapid changes to Earth's magnetic core will bring asteroids spiraling down upon us, meanwhile the elites will unleash COVID-22 which will then hybridize with the pythons in the Everglades (which are now global thanks to all the mega-tsunamis) and kill all the survivors.

You can't prove that it wont happen.
 
As crazy as the world has been lately, we all need something to believe in.

Let us hold onto the hope of a horrifying natural disaster. Just for a little while.

💥🌋💥
 
It pretty much does. What is the driver here? Why should it speed up?

Yes. And venting pressure.

As much as what has built up in the magma chamber and all of it. This isn't a kaboom-type eruption.

Volcanoes go through stages of activity. Eruptions are when it vents off the pressure. At most it becomes a Kilauea situation where it just keeps oozing because it's plumbing connected all the way down through the crust. This one will probably stop here in a bit once the magma chamber exhausts itself for this round, the plumbing solidifies, and the cycle starts over again. It's how these things work.

Whatever you say Mister "Lava tubes are 10000km long and reach across continents".
https://youtube.com/watch?v=kIegAa26lX8

1632787184674.png


YOU DIDN'T SEE LAVA TUBES, BECAUSE THEY'RE NOT THERE.
 
Does anyone know when/if it will reach the ocean? The last updated graph I saw, it was about halfway there. This was the other day.

I heard about 6 hours, but that was quite a while ago. It seems to have slowed down since the second vent opened, though since the third opened it's hard to tell
Livestream I'm. watching right now says the lava is 1.4kms from the ocean.
Seems to be moving slower than expected.
 
Since this thing is squirting out lava I think we can safely discard the "massive earthquake landslide tsunami" fears. The pressure is being relieved. Not growing. Meaning no island-shattering magma displacement.
The volcano exploding was never the issue. The flank of the island breaking apart and sliding into the ocean is what will allegedly cause a tsunami and all that requires is an earthquake in the right place.
 
The volcano exploding was never the issue. The flank of the island breaking apart and sliding into the ocean is what will allegedly cause a tsunami and all that requires is an earthquake in the right place.
It takes a lot more than one in the right place. Intensity is a huge factor. That shit is logarithmic and we ain't even close to island breaking apart forces. And yes, exploding volcanoes are part of the issue. Exploding volcanoes have andesite magma that is high in silica versus low silica mafic lava that flows, well, how it's been flowing. High-silica magma acts like a plug and makes those big pointy stratovolcanoes. It increases pressures making them explodey and... wait for it... have more intense earthquakes when that magma plug shifts.
 
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