Cumbre Vieja Volcano Part II & A-Team rescues trapped dogs from lava. 5

[1503-44]

Continued from Potential Disaster in the Making.

https://www.eng-tips.com/viewthread.cfm?qid=487413

Definitely fulfilling every bit of its potential.
This is probably the worst disaster, excluding loss of life events, to hit Spain in a very long time. Nobody has died, but many lost a lifetime. Buried. Gone.

At least one bit of good news here.

Surprise Development!

This sign was discovered this morning.

Strength to La Palma! The dogs are fine!
signed: "A-team".

Video

https://diariodeavisos.elespanol.co...tribuye-el-rescate-de-los-perros-de-la-palma/

The A-Team has rescued the dogs trapped by the lava. Frustrated by the lack of action on the part of the authorities in approving the much anticipated air rescue attempt, The "A-Team", a group of animal activists took matters into their own hands. Apparently they mounted a covert operation sometime on Tuesday night and successfully slipped in past the police and around the roadblocks to rescue the dogs. The identity of the A Team agents and the present location of the dogs is being held secret, so as they cannot be prosecuted for violation of the security rules.

This story cannot yet be verified, but we hope it is true and that the dogs have indeed been rescued.

 

[1503-44]

4.5 can be bad at the surface. 13km down, not so much.

 

[RedSnake]

We have earth quakes here too, I remember at least two, the last one was this one.

2016: March 19. At 22:55, an earthquake with a magnitude of 4.1 occurred in the Gulf of Bothnia, approximately 47 km outside Kinnbäck between Piteå and Skellefteå. Reports of the quake came from Sundsvall in the south to Gällivare in the north, and from the Finnish coast.

It felt like a truck had run into the house, like everything moved 5 cm and the back again.
But there is never any damage on things on the surface.





“Logic will get you from A to Z; imagination will get you everywhere.“
Albert Einstein

 

[1503-44]

I've been in 6 over Mag 5. 2x Turkey. 2x Colombia, 1 Dubai via Iran, 1 Venezuela. The Venezuelan one was actually 4.5, but the bad ground conditions gave it a 6 effect. That wasn't pleasant. I was drinking a beer when the table started shaking. Lasted 45s, a long time for a quake. A school 30km away fell down and killed a few kids. I usually don't count 4s, but that one qualified.

 

[dik]

"LOS LLANOS DE ARIDANE, CANARY ISLANDS -- A volcano on the Spanish island of La Palma that has been erupting for six weeks spewed greater quantities of ash from its main mouth Sunday, a day after producing its strongest earthquake to date.

Lava flows descending toward the Atlantic Ocean from a volcanic ridge have covered 2,400 acres of land since the eruption began on Sept. 19, data from the European Union's satellite monitoring service, showed. On the way down the slope, the molten rock has destroyed more than 2,000 buildings and forced the evacuation of over 7,000 people.

But authorities in the Canary Islands, of which La Palma is part, have reported no injuries caused by contact with lava or from inhaling the toxic gases that often accompany the volcanic activity."

https://www.ctvnews.ca/world/with-no-sign-of-eruption-s-end-ash-blankets-la-palma-island-1.5645909

Rather than think climate change and the corona virus as science, think of it as the wrath of God. Feel any better?

-Dik

 

[1503-44]

5000m plume height
2700+ structures destroyed
1450t/d SO2 (very high - needs verification)
Increase in lava flows
5.1 quake on Friday, since dropped to 3.5
Very high ash output
Some now buried twice

 

[AusG]

more ash = more volatiles. Different pod of magma being tapped?

 

[FacEngrPE]

Some of the discussion above about earthquakes and finding that none of the recent Canary Islands earthquakes show up in the USGS earthquake map. Perhaps it is something to do with the mechanism that generates the earthquake energy being different from the ones that are related to sliding crustal blocks.

That led me to run a search for "volcano slug flow" which pulls up a bunch of papers along a similar line. One of the referenced web pages contains the "Taylor bubble (gas slug) flow in a volcanic context". Taylor bubble is one way of calculating parameters related to SO2 emissions, and some other parameters, which experts might know or be able to figure out.

One of the web pages that turns up provides a lengthy explanation of how all of this works at Fagradalsfjall
The changing faces of Fagradalsfjall: fizz, bubbles and slugs.

 

[1503-44]

Spanish IGN records here,

https://www.ign.es/web/ign/portal/ultimos-terremotos

They are posting 5.x at 31 10 17:52 and 30 10 07:32.

Yes, I've found several papers on magma flow. It seems many types of flow regimes are experienced in vents, including annular flow.

Thanks for the links.

 

[moon161]

I sorta felt the 5.0 2010 central canada quake 300 miles away in buffalo. Mostly watched my monitor wiggle for 10 or 15 seconds.

 

[Pud]

There's a lot of them recorded on the "Lastquake" app. (Android/Google store)

Cheers


Politicians like to panic, they need activity. It is their substitute for achievement.

 

[1503-44]

1 11 2021 18:50 UTC

 

[1503-44]

Puerto Naos may get cut off soon.
Air quality extremely bad.
Heavy ash rain continues.
Airport closed.
5.1 quake this morning.

 

[itsmoked]

The last two days the beast seems much different. No geysers seen. Same exact jet sound so maybe the jets are still going but we can't see them? It does look like tons of lava are still flowing everywhere down the slopes.

Keith Cress
kcress -

http://www.flaminsystems.com

 

[1503-44]

It was jetting a large torch for almost the entire weekend, so maybe getting recharged. There has been no lack of ash plume.

This morning 22,000 t/day (250kg/s) SO2 was reported. Don't know what's up with those numbers.
Somebody may be reporting using "." separators instead of ".", or the news has gotten the numbers wrong as usual ???

Estimating from a volcano mass expulsion relationship, Plume Ht Km = 0.365 * M^0.255
M = kg/s
Using 5km plume height reported Saturday.
M = 110,000 kg/s , 110 metric tonnes /s
0.365 varies with a number of factors, not explained, but in any case a rather large number.

One thing for certain is that ash removal from rooftops and critical roads is a major, major problem now. Its a continuous blizzard with 5 surrounding townships confined to home. Another Pompeii in the Making.
That will worsen, if threatened rain happens on Thursday/Fri. The SG of the dry ash is 1.00

 

[itsmoked]

Oh wow..that'll be Lahars everywhere.

That tombstone view above is pretty shocking for ash-fall.

Keith Cress
kcress -

http://www.flaminsystems.com

 

[1503-44]

The space observers tracking atmospheric particles related to aviation weather mention that SO2 emissions have been around 50kt/d.

https://www.aeronomie.be/en/news/2021/tracking-cumbre-vieja-volcanic-sulphur-dioxide-space

Any way, ash fall is totally out of control. Looks like black snow in Buffalo, NY.

Lots of tourists (10k were there for the All Saint's 3 day weekend) are stuck on the island with the flights cancelled. Returns on the ferries are all booked too.

 

[dik]

Does anyone have an idea of how long it will take for the ash to become a suitable medium for growing 'stuff'?

Rather than think climate change and the corona virus as science, think of it as the wrath of God. Feel any better?

-Dik

 

[Demented]

Depends on it's composition, but it would likely be suitable almost immediately assuming ground temperatures are not insane.

Precision guess work based on information provided by those of questionable knowledge

 

[dik]

Thanks... a lot faster than I would have thought.

Rather than think climate change and the corona virus as science, think of it as the wrath of God. Feel any better?

-Dik

 

[1503-44]

It's far better as an ash tray medium.

It's full of minerals, but 0 organics and other binders. It's basically worse than Arabian desert sand, where all that it needs is just water. Soil has been mixed into ash and lava flows, or rather placed on top in 18" min layers, in some places on Lanzarote from its 6yr flow and its worked there at least to some extent for bananas, small crops and grape vines Otherwise on its own it takes a few hundred years.

Lava flooded land, called "malpias", or badlands here, is supposed to revert to the state as protected parkland, not for construction, but due to the general shortage of land here, there is some talk of changing that law. But there always is such talk that never seems to matter in the end. In any case, a lot of work will have to be invested into such an effort. Its worse than badlands. It is very "chunky", not smooth like in Hawaii. Extremely rough and sharp surfaced. Falling on it usually requires a trip to the doctor, or at least the pharmacy to buy bandages. Some razor edges in there. A Mars rover couldn't make it's way over most of it. There are still flows here from 1906 that have been left to nature to recover. You really can't even walk on the stuff. I think a hotel or two have been built on top of a few that spilled into the ocean hundreds of years ago.