picturesareme
19 September 2021 20:50:08

Going on the live feed it would appear buildings are now burning as a result of the extensive lava flow 

doctormog
20 September 2021 06:53:34
This camera is currently panning around the area. The extent of the ongoing eruption is evident:


Saint Snow
20 September 2021 13:05:53

Originally Posted by: Bolty 

Lots of talk on social media about the possible Atlantic megatsunami that the scientists say could happen if the island was to split and cause a landslide into the ocean. Very low risk though.

 

 

 

It was a brilliant Horizon programme about the risk. If you like 'disaster porn' then it was great viewing 

Fortunately - or unfortunately if you prefer - the thesis has been debunked. Firstly, the chance of a huge chunk of La Palma sliding into the ocean is miniscule. Secondly, even if it did the resulting wave wouldn't be anything like the size the thesis claimed, and would largely dissipate before reaching the Americas.

https://www.bbc.co.uk/science/horizon/2000/mega_tsunami.shtml

https://www.bbc.co.uk/science/horizon/2000/mega_tsunami_qanda.shtml

 


Martin

Home: St Helens (26m asl) Work: Manchester (75m asl)

A TWO addict since 14/12/01

"How can wealth persuade poverty to use its political freedom to keep wealth in power? Here lies the whole art of Conservative politics."

Aneurin Bevan

DEW
  • DEW
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20 September 2021 19:38:10

Sod's Law - our daughter and husband book their first holiday abroad for 2 years and a volcano blows up just where they've arranged to go!


"Quick zephyrs blow, vexing daft Jim" - another weather pangram
DEW
  • DEW
  • Advanced Member
20 September 2021 20:11:00

Originally Posted by: Saint Snow 

 

 

 

It was a brilliant Horizon programme about the risk. If you like 'disaster porn' then it was great viewing 

Fortunately - or unfortunately if you prefer - the thesis has been debunked. Firstly, the chance of a huge chunk of La Palma sliding into the ocean is miniscule. Secondly, even if it did the resulting wave wouldn't be anything like the size the thesis claimed, and would largely dissipate before reaching the Americas.

https://www.bbc.co.uk/science/horizon/2000/mega_tsunami.shtml

https://www.bbc.co.uk/science/horizon/2000/mega_tsunami_qanda.shtml

 

AFAIK tsunamis only dissipate slowly in deep water. Maybe nothing as high as the 50m claimed in the second link but for comparison, Somalia received 4m high tsunami waves from the Sumatran earthquake 2800 miles away. That sort of size will still do nothing for prices of Miami real estate

https://earthobservatory.nasa.gov/images/14404/earthquake-spawns-tsunamis 


"Quick zephyrs blow, vexing daft Jim" - another weather pangram
Saint Snow
20 September 2021 20:49:03

Originally Posted by: DEW 

Sod's Law - our daughter and husband book their first holiday abroad for 2 years and a volcano blows up just where they've arranged to go!

 

That's terrible luck. Hope she can change to somewhere else. 


Martin

Home: St Helens (26m asl) Work: Manchester (75m asl)

A TWO addict since 14/12/01

"How can wealth persuade poverty to use its political freedom to keep wealth in power? Here lies the whole art of Conservative politics."

Aneurin Bevan

picturesareme
20 September 2021 22:06:15

spectacular 

 

doctormog
21 September 2021 16:25:54
The eruption is still going strong with regular explosions now audible on the YouTubes streams. Somewhat worryingly the more recent data suggestion that the ground is still inflating rapidly.
picturesareme
21 September 2021 17:09:25

Originally Posted by: doctormog 

The eruption is still going strong with regular explosions now audible on the YouTubes streams. Somewhat worryingly the more recent data suggestion that the ground is still inflating rapidly.

I was just reading that inflation is actually stable rather than increasing.. slowly decreasing according to this..

https://www.volcanodiscovery.com/lapalma/sep2021seismic-crisis/current-activity.html?refresh 

 

 

 Edit: that same website also mentioning increasing inflation (as you say)so contradictory in its reporting. 

 

 

doctormog
21 September 2021 17:13:44

Originally Posted by: picturesareme 

 

I was just reading that inflation is actually stable rather than increasing.. slowly decreasing according to this..

https://www.volcanodiscovery.com/lapalma/sep2021seismic-crisis/current-activity.html?refresh 

 

 

”There are concerns that the eruption is still far from stable and yet more vents, possibly further north could open up. Inflation has been continuing and reached 30 cm in places, sign that magma is still pressurizing and accumulating underground.”

It was around 16cm yesterday morning. That is a massive amount of inflation and shows that magma is accumulating at a much faster rate than it is currently being released. Any inflation is bad news during an eruption.


picturesareme
21 September 2021 17:15:34

Originally Posted by: doctormog 

 

”There are concerns that the eruption is still far from stable and yet more vents, possibly further north could open up. Inflation has been continuing and reached 30 cm in places, sign that magma is still pressurizing and accumulating underground.”

It was around 16cm yesterday morning. That is a massive amount of inflation and shows that magma is accumulating at a much faster rate than it is currently being released. Any inflation is bad news during an eruption.

Yes I edited post above.. I've just read the update saying the above :) 

doctormog
21 September 2021 17:19:22

Originally Posted by: picturesareme 

 

Yes I edited post above.. I've just read the update saying the above :) 

Here is a direct link to the deformation data (although I think there may be more up to date or frequently updated) information available: http://www.ign.es/web/resources/volcanologia/GPS/jpg/PA_GPS_LP03_90d.png 

I suspect there are a few twists and events to come in the near future.

I think once again the video footage will look impressive when the sun goes down. Sadly it is inevitable more houses will be destroyed.

https://www.youtube.com/watch?v=hfoWeQnFSx4 


picturesareme
21 September 2021 17:24:08

Originally Posted by: doctormog 

 

Here is a direct link to the deformation data (although I think there may be more up to date or frequently updated) information available: http://www.ign.es/web/resources/volcanologia/GPS/jpg/PA_GPS_LP03_90d.png 

I suspect there are a few twists and events to come in the near future.

I think once again the video footage will look impressive when the sun goes down. Sadly it is inevitable more houses will be destroyed.

https://www.youtube.com/watch?v=hfoWeQnFSx4 

Is this an the new vent that opened last night? 

Maybe another vent or two more will open in the coming days. Not great for those who live in the path of any lava flows, but nothing violent eruption wise.

 

Darren S
22 September 2021 20:11:29

The lava field from the La Palma eruption as of 20th September can be seen here:

https://pbs.twimg.com/media/E_yWlSkVQAYIxuN?format=jpg&name=4096x4096

Looks like a fairly narrow band, but eventually there will be no route between the north west and south west of the island without going all the way around the other side.


Darren

Crowthorne, Berks (87m asl)

Winter 2022/3: Snow Days: 0 Snow Cover Days: 0 Current Depth: 0 cm Max Depth: 0 cm Total Depth: 0 cm

South Berks Winter Snow Depth Totals:

2021/22 1 cm; 2020/21 13 cm; 2019/20 0 cm; 2018/19 14 cm; 2017/18 23 cm; 2016/17 0 cm; 2015/16 0.5 cm; 2014/15 3.5 cm; 2013/14 0 cm; 2012/13 22 cm; 2011/12 7 cm; 2010/11 6 cm; 2009/10 51 cm

DEW
  • DEW
  • Advanced Member
27 September 2021 07:15:51

Originally Posted by: Saint Snow 

 

 

That's terrible luck. Hope she can change to somewhere else. 

It turns out that it's cancellable at short notice - and they're actually looking for a helicopter flight over the eruption to augment their holiday


"Quick zephyrs blow, vexing daft Jim" - another weather pangram
doctormog
27 September 2021 07:23:50
As far as I know the airport at La Palma remains closed due to ash currently. That aside the eruption is a bit unpredictable currently with a lessening of the intensity right now but an increase in quakes at around 10km. I’m not sure I would like to predict what will happen in the coming hours or days.
DEW
  • DEW
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27 September 2021 07:34:24

Originally Posted by: doctormog 

As far as I know the airport at La Palma remains closed due to ash currently. That aside the eruption is a bit unpredictable currently with a lessening of the intensity right now but an increase in quakes at around 10km. I’m not sure I would like to predict what will happen in the coming hours or days.

THey (daughter & husband) are'nt going until end Nov so hoping tourism will have re-started by then


"Quick zephyrs blow, vexing daft Jim" - another weather pangram
doctormog
27 September 2021 18:33:59
The eruption has recently restarted as vigorously as before, possibly a little more so. I feel it may be a little while before any decisions could be made about travel. Fingers crossed their plans can go ahead or that an acceptable alternative can be found.
doctormog
29 September 2021 18:17:52
Just a quick update to say that the lava flow reached the sea early this morning and continues to flow at a high rate. Earthquakes are also continuing at a depth that indicates further intrusion of magma in the region below the volcano.

If nothing else La Palma will be a slightly different shoe that it was before the eruption. Not unusual in the big picture for the Canaries, but the big picture usually takes many millennia.


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