Cumbre Vieja eruption

[Asbo Zaprudder]

The Cumbre Vieja volcano on La Palma in the Canary Islands is erupting. What do people think is the possibility of the west flank of the volcano collapsing and causing a megatsunami as hypothesised in 2002. It might have the potential to create 30m-high waves on the eastern seaboard of the US and the coast of Brazil.

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[Ar-Pharazon]

I'm not a seismologist, nor do I play one on TV. But any chance the Gulf Stream knocks down any substantial waves, it they can even make it 3000+ miles?

 

[XCV330]

i dont know anything about weather and tsunamis either, but i wonder if the mid atlantic ridge would slow down the speed of a tsunami like that

 

[Asbo Zaprudder]

It's been modelled as the video shows. Such simulations take into account the topography of the ocean floor and they are much more accurate than weather forecasts. As such waves typically travel at 800 kph and the North Atlantic Current (Gulf Stream) at 0.1 kph, I think I can guess which would dominate. The main variables of uncertainty seem to me to be the volume and speed of a potential landslide. It's going to happen sometime. Let's just hope it doesn't coincide with Yellowstone blowing its top.

 

[publiusr]

Seismic Sea Waves are impulse waves going all the way down to the sea floor. The last big landslide wave was the Lituya Bay splashout from the 60’s. Calving off icebergs cause smaller waves.

The Tuscaloosa Sea Mount off Hawaii slid off almost as a solid mass during the Nu’uanu Slide from the Ko’olau shield volcano about a million years back or so.

An odd find:
https://phys.org/news/2022-06-axisymmetric-spike-limits-previously-thought.html
In a new study on ocean wave breaking, researchers have demonstrated that the breaking behavior of axisymmetric "spike waves" is quite different to the long-established theories on the breaking of traveling waves. Understanding the dynamics of the spike wave could ultimately lead to advances in maritime safety based on improved data on wave height limitations and breaking behavior in extreme conditions.

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https://www.cnn.com/2022/07/08/us/seattle-earthquake-simulation-tsunami/index.html
https://phys.org/news/2022-08-tonga-volcano-eruption-metersnine-taller.html

https://www.universetoday.com/157522/the-tonga-eruption-produced-a-90-meter-tsunami/

Underwater avalanche
https://phys.org/news/2022-07-scientists-world-longest-underwater-avalanche.html

Fire and ice
https://phys.org/news/2022-05-ice-capped-volcanoes-slower-erupt.html

Gyres
https://phys.org/news/2022-06-unravel-stability-mystery-ocean.html

Tonga
https://phys.org/news/2022-09-tonga-home-islands-underwater-volcanic.html

Freak waves
https://phys.org/news/2022-09-extreme-nonlinear-group-dynamics-states.html

Landslides
https://phys.org/news/2022-09-nationwide-strategy-scientists-landslide.html

Amasia--the coming Pangea
https://phys.org/news/2022-09-pacific-ocean-world-supercontinent.html

Climate--sea level seesaw
https://phys.org/news/2022-09-definitive-proof-elusive-sea-fingerprints.html

Lastly
https://phys.org/news/2022-06-lava-ejected-cumbre-vieja-eruption.html
"The lava's viscosity was among the lowest ever observed for a basaltic eruption," said Yves Feisel, a doctoral candidate in Professor Jonathan Castro's research group at the JGU Institute of Geosciences...."That is a figure 10 times lower than, say, the viscosity of the lava discharged from Kilauea in Hawaii in 2018."

 

[Asbo Zaprudder]

There are probably turbidite slides all the time such as the Storegga slide that occurred about seven thousand years ago, causing a tsunami in the North Sea.
Model simulations of tsunami generated by the Storegga slide

 

[publiusr]

The verdict:
"The eruption was equivalent to around 61 Mt of TNT, whereas the Tsar Bomba released between 50–58 Mt. The Tonga volcanic eruption released energy equivalent to a magnitude 8.4 earthquake, and the pressure wave traveled several times around the globe.
https://phys.org/news/2022-08-tonga-volcano-eruption-energy-powerful.html

Lessons from the eruption
https://phys.org/news/2021-12-environmental-scientist-lessons-unexpected-eruption.html
In his paper, he notes that the timing, explosive power and effusiveness of the blast caught most vulcanologists off guard....On September 11, 2021, earthquake patterns increased and were coming from more shallow depths, and ground deformations appeared.

More
https://phys.org/news/2022-03-geologists-preliminary-account-tonga-eruption.html
https://phys.org/news/2022-06-tonga-volcano-eruption-powerful-triggering.html
"This was a genuinely huge explosion, and truly unique in terms of what's been observed by science to date. We've never seen atmospheric waves going round the whole world before, or at this speed—they were traveling very close to the theoretical limit."

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https://phys.org/news/2022-07-shockwave-tonga-underwater-eruption-scientists.html
https://phys.org/news/2022-07-reconstructing-volcanic-eruptions-scientists-climate.html

More on Tonga
https://phys.org/news/2022-09-tonga-volcano-blast-unusual-earth.html
https://phys.org/news/2022-09-elusive-atmospheric-tonga-volcanic-eruption.html

Volcanoes do weaken ozone after all
https://phys.org/news/2022-08-atmosphere-tonga-eruption-weaken-ozone.html

Geo news
https://phys.org/news/2022-09-plate-boundary-africa-iberian-peninsula.html
https://phys.org/news/2022-09-mexico-earthquake-triggers-tsunami-miles.html
https://phys.org/news/2022-09-drones-gassy-volcanoes.html
https://phys.org/news/2022-09-statistical-analysis-aims-greek-volcano.html
https://phys.org/news/2022-09-planet-volcano-visitors-spanish-isle.html
https://phys.org/news/2022-09-spanish-islanders-struggle-year-volcanic.html

Landslides
https://phys.org/news/2022-09-international-nomenclature-landslide-geometry.html

Yhe under-ocean
https://phys.org/news/2022-09-capturing-ocean-turbulence-underbelly-sea.html

 

[publiusr]

Record plume
https://phys.org/news/2022-11-scientists-highest-ever-volcanic-plume.amp

More:
https://theconversation.com/why-the...was-so-violent-and-what-to-expect-next-175035
Take a look at the Reddit gif section.

Looks like Shoemaker-Levy…you can see the shockwave. Wiki calls this a 1 in a thousand year event.

Volcano rain and other events
https://phys.org/news/2022-07-climate-heavy-rainfall-events-volcanoes.html
https://phys.org/news/2022-07-earth-ancient-key-continents.html
https://phys.org/news/2022-07-supervolcano-co2-emissions-key-climate.html
https://phys.org/news/2022-07-physics-slab-avalanches-similar-earthquakes.html

Cliff erosion
https://phys.org/news/2022-08-high-resolution-california-coastal-cliff-erosion.html
https://phys.org/news/2022-08-landslides-increasingly-threaten-world-urban.html
https://techxplore.com/news/2022-08-human-movement-disasters-effective-emergency.html

 

[Turtletrekker]

We have an even larger explosion from Hunga Tonga now:

https://theconversation.com/why-the...was-so-violent-and-what-to-expect-next-175035
Take a look at the Reddit gif section.

Looks like Shoemaker-Levy…you can see the shockwave. Wiki calls this a 1 in a thousand year event.

Ongoing.

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[publiusr]

Looking at the ISS track a moment ago, there looked to have been an overfly.
Rampino who wrote a book on the centennial of 1883’s Krakatoan explosion—is no doubt looking into this things V.E.I.
Pinatubo’s eruption from the early 90’s was similar…but obscured by a tropical system. It too erupted a month ago…mostly steam.

We could get a dip in temperatures. Stay tuned.

 

[Non Sync]

The pressure wave was measured at Anchorage, AK, 5,820 miles away, and clocked at 830 mph. The pressure wave was also measured at Chicago's O'Hare Airport.

 

[Gingerbread Demon]

The pressure wave was measured at Anchorage, AK, 5,820 miles away, and clocked at 830 mph. The pressure wave was also measured at Chicago's O'Hare Airport.

Should that worry people?

 

[publiusr]

No. But I think it points to the explosion being more than the 10 megaton estimate

Why volcanoes collapse
https://phys.org/news/2022-02-hidden-weaknesses-volcanoes-collapse.html
https://phys.org/news/2022-05-tsunami-threats-greatly-underestimated-current.html

Hawaii
https://phys.org/news/2022-05-world-volcano-born.html

An early impact
https://phys.org/news/2022-05-home-thera-volcano-eruption-date.html
https://phys.org/news/2022-05-volcanic-bombardment-ancient-australia-world.html
https://phys.org/news/2022-05-nasa-simulation-volcanoes-climate-ozone.html

For snow threats
https://phys.org/news/2022-02-satellites-ice-avalanche-threats.html

Weather reports and storms
https://techxplore.com/news/2022-05-next-generation-weather-versatile-flexible-economical.html
https://phys.org/news/2022-05-pacific-climate-pattern-cyclone.html
https://phys.org/news/2022-05-extreme-storms-beaches-sea.html
https://phys.org/news/2022-05-international-satellite-track-impacts-small.html
https://phys.org/news/2022-05-earthquake-code.html
https://phys.org/news/2022-05-earlier-tsunamis.html

Iceland now
https://phys.org/news/2022-08-gases-iceland-volcano-threaten-nearby.html

Next:
https://www.dailymail.co.uk/news/ar...olcanic-eruption-century-scientists-warn.html

 

[publiusr]

The cost of the Cumbre Vieja eruption in La Palma, Spain is now said to have reached nearly a billion Euros....some talk about prediction.
https://phys.org/news/2022-05-volcanic-eruptions-hurricanes.html

Some other reports on Tonga "Now, scientists are finding the volcano's effects also reached space."
https://phys.org/news/2022-05-satellite-mission-tonga-volcanic-eruption.html


....scientists found that in the hours after the eruption, hurricane-speed winds and unusual electric currents formed in the ionosphere—Earth's electrified upper atmospheric layer at the edge of space.

"The volcano created one of the largest disturbances in space we've seen in the modern era," said Brian Harding, a physicist at University of California, Berkeley, and lead author on a new paper discussing the findings. "It is allowing us to test the poorly understood connection between the lower atmosphere and space."

More:
https://phys.org/news/2022-05-massive-eruption-tongan-volcano-explosion.html

"Lamb waves are rare. We have very few high-quality observations of them," Fee said. "By understanding the Lamb wave, we can better understand the source and eruption. It is linked to the tsunami and volcanic plume generation and is also likely related to the higher-frequency infrasound and acoustic waves from the eruption."

https://techxplore.com/news/2022-05-undersea-fiber-cables-seismic-events.html

More on the tsunami
https://phys.org/news/2022-06-scientists-explanation-exceptional-tonga-tsunami.html
https://phys.org/news/2022-10-coastal-erosion-unstoppable.html

But Tonga brought new life
https://phys.org/news/2022-10-tonga-volcano-eruption-life-rapid.html

Thera
https://phys.org/news/2022-10-mission-probe-santorini-volcano-mysteries.html

The quake next time
https://phys.org/news/2022-10-long-dead-marine-major-earthquake.html
https://phys.org/news/2022-10-ai-physics-future-fault-laboratory.html

 

[Gingerbread Demon]

Yes volcanoes can create their own mini climate zones, lightning and other things are not unusual.