Volcano and Earthquake watch

[StoneRoad]

When I looked last night, the "crater" vent looks to be erupting "under" Nar's North Wall - it could be "Rag" having a blow-out.

Lava lake has migrated further south into Geldingadalir, but not yet spilt over into neighbouring Nattahagi.

Will be checking in shortly to see what has happened so far today.

 

[Badgers]

Canary Islands volcano eruption engulfs homes – DW – 09/19/2021

The volcano continued to spew red-hot lava and ash into the sky from the island of La Palma. Authorities have evacuated some 5,000 people, while a hundred homes have already been razed.

m.dw.com

 

[mx wcfc]

Canary Islands volcano eruption engulfs homes – DW – 09/19/2021

The volcano continued to spew red-hot lava and ash into the sky from the island of La Palma. Authorities have evacuated some 5,000 people, while a hundred homes have already been razed.

m.dw.com

Came on this thread to post that. La Palma was the last place we went to before the lockdown stuff started. The hotel we stayed at was built on land that didn't exist before another volcano erupted in 1971. The volcanic geography of the island is pretty impressive.

 

[farmerbarleymow]

It's good to see the Guardian is on top of its game spotting typos.

Canary Islands: 5,000 evacuated as La Palma volcano eruptions continue

At least 20 homes destroyed and people told to stay away as lava pours from volcano on Spanish island

www.theguardian.com

 

[StoneRoad]

Not to mention the point that some of the reporters need to learn / know the difference between LAVA and MAGMA.

 

[Bahnhof Strasse]

Not to mention the point that some of the reporters need to learn / know the difference between LAVA and MAGMA.

One is a baby insect and the other a Trump supporter.

 

[StoneRoad]

One is a baby insect and the other a Trump supporter.

Don't you start !

I knew the difference between those two words the reporters have been mis-using before I went to secondary school !

 

[Orang Utan]

what’s the difference? isn’t lava just escaped magma?

 

[StoneRoad]

what’s the difference? isn’t lava just escaped magma?

Magma is molten rock which contains dissolved gases under pressure as it is below the surface of the ground.
When it is erupted onto the surface, most of that gas escapes [sometimes violently] and becomes lava which [generally] flows away from the crater(s).

There's a whole range of igneous rocks and landforms, depending on whether the magma was intruded somewhere and cooled without reaching the surface or if it was erupted, either as "ash" or lava, and thus cooled after de-gassing ...

 

[Orang Utan]

so i was right!

 

[StoneRoad]

so i was right!

Sort of, the de-gassing does make some changes between the magma and the lava.
Both physically and to a lesser extent chemically.

When igneous intrusions cool from magma, the crystals formed are quite a bit bigger and more differentiated when compared with the same chemical mix as a lava which cools more quickly after being erupted.
Quite a complicated subject ...

 

[Nylock]

Isn't the Cumbre Vieja volcano that one they were worried about collapsing into the Atlantic and triggering an enormously destructive tsunami that would basically fuck every coastline in the northern atlantic basin?

 

[mx wcfc]

Shit's getting real down there......

 

[farmerbarleymow]

Probably not ideal swimming weather.

 

[farmerbarleymow]

Nice picture of Etna.

 

[farmerbarleymow]

More pictures here

Toxic gas, new rivers of molten lava endanger Spanish island

On the Spanish island of La Palma, a new volcanic vent has blown open and unstoppable rivers of molten rock are flowing. toward the sea.

apnews.com

 

[farmerbarleymow]

Better video of the boiling swimming pools.

 

[farmerbarleymow]

Some beautiful close up shots of the lava from the Icelandic volcano.

Lava - Iceland

Fine art photography series by visual artist and landscape photographer Jan Erik Waider. All images were taken at the volcanic eruption in Geldingadalir on the Reykjanes peninsula in Iceland.

www.northlandscapes.com

That site ^^ has some stunning pictures on - definitely worth a look.

 

[farmerbarleymow]

A 5.8-6.0 quake in Melbourne - apparently the strongest in almost 200 years.

Melbourne buildings damaged in Victorian earthquake and aftershocks expected – as it happened

Earthquake near Mansfield shakes buildings across Melbourne, with some reports of damage. This blog is now closed

www.theguardian.com

‘Everyone was nervous’: Victoria avoids serious damage after major earthquake rocks Melbourne

Seismologists believe 5.9 magnitude earthquake that hit Mansfield Wednesday morning is ‘probably largest in 175 to 200 years’

www.theguardian.com

For some reason I don't associate Australia with earthquakes in my mind.

 

[farmerbarleymow]

An interesting paper on a theoretical model of Surtseyan bomb fragmentation

https://royalsocietypublishing.org/doi/10.1098/rspa.2021.0166

 

[StoneRoad]

An interesting paper on a theoretical model of Surtseyan bomb fragmentation

https://royalsocietypublishing.org/doi/10.1098/rspa.2021.0166

A bit of light reading ...

I remember the eponymous event - and a couple of months later my geology teacher brought small "breadcrust" and "spindle" bombs in for us to examine.

 

[farmerbarleymow]

A bit of light reading ...

I don't have the faintest idea about the maths bits, but I'm just glossing over those sections...

 

[AnandLeo]

La Palma: amid devastation caused by the volcano, islanders face uncertain future

Experts say that further dangers lie ahead for residents of the Spanish island, with the threat of earthquakes, more lava flows, toxic gases, volcanic ash and acid rain, writes Graham Keeley

www.independent.co.uk

Lava pours out of volcano on La Palma in Spain's Canary Islands

In La Palma, already 6000 people have left homes, 300 buildings swallowed, and no deaths or injuries so far. Canary Islands of Spain are not developing countries. I don’t know how these people were allowed to live in these areas affected by the erupting volcano. Some houses with swimming pools engulfed. Sparsely populated, however inhabited. Island has 85000 inhabitants. In the 19th and early 20th century, the planning controls may have been slack. In the 21st century, society should be more prepared.

Spectacular event for some tourists and photographers. The authorities and people should have a better idea of what is safe and what is not.

 

[WouldBe]

Problem is that volcanoes are unpredictable. This one last erupted 50years ago. They might have thought it was dormant.

Do you prevent people living in Edinburgh or elsewhere just incase that volcano goes off? You'd have to re-home some very large populations around the world. .

 

[StoneRoad]

In some areas AnandLeo , the only land available to live on, is the flanks of a volcano ...
And in other areas people take the risk of living next to a volcano because the soil that develops in such places is exceptionally fertile.

 

[T & P]

I wonder if you can even insure your house if you live in certain areas there…

Unfortunately I can remember any geographical details but a customer from work who lives in Hawaii once told me certain parts (of the main island I guess, but not really sure which one) were considered as relatively safe as one could expect on a volcanic island, whereas in others properties were dead cheap but only because it was almost a given an eruption would pop up every few years or decades at most, and you were as likely as not to see your house devoured by lava.

 

[mx wcfc]

I wonder if you can even insure your house if you live in certain areas there…

Unfortunately I can remember any geographical details but a customer from work who lives in Hawaii once told me certain parts (of the main island I guess, but not really sure which one) were considered as relatively safe as one could expect on a volcanic island, whereas in others properties were dead cheap but only because it was almost a given an eruption would pop up every few years or decades at most, and you were as likely as not to see your house devoured by lava.

It's like those people who have bought houses on that part of the east cost here that is being eroded - you get a cheap house, and cross your fingers that it will still be there before you die. Many are losing their homes.

It's a bummer for people when it doesn't work out, but I guess some of those people in La Palma have bought/built cheap on a gamble and have lost the bet. I genuinely feel sorry for them though.

 

[T & P]

I think whoever owns this house knows people in high places, or has made deal with people in low places...

Canary Islands volcano: 'Miracle house' escapes lava

The volcano on La Palma has been erupting since Sunday, destroying hundreds of homes.

www.bbc.co.uk

 

[WouldBe]

I think whoever owns this house knows people in high places, or has made deal with people in low places...

Canary Islands volcano: 'Miracle house' escapes lava

The volcano on La Palma has been erupting since Sunday, destroying hundreds of homes.

www.bbc.co.uk

Not for much longer if that fire spreads to it.

 

[AnandLeo]

In some areas AnandLeo , the only land available to live on, is the flanks of a volcano ...
And in other areas people take the risk of living next to a volcano because the soil that develops in such places is exceptionally fertile.

The current eruption will dictate that it is not good sense for people to live on the flanks of volcano. It will also demarcate a new danger zone far beyond the limits of previous flows. There is no case of living next to a volcano, because it will severely endanger life and property once or twice in 100 years. However, non-resident agricultural farming activities might be feasible without human habitation, in a danger zone. Social, economic and commercial infrastructure in the potentially danger zone should be phased out judiciously.