Saint Snow
24 September 2018 10:06:04

The scientists investigating the potential for eruption of Katla have slammed scaremongering by the Media and stressed they have not said an eruption is imminent.

 


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

doctormog
24 September 2018 10:27:02

Originally Posted by: Saint Snow 

The scientists investigating the potential for eruption of Katla have slammed scaremongering by the Media and stressed they have not said an eruption is imminent.

 

Indeed, it is scaremongering nonsense. The paper itself is very interesting and refers to the (larger than expected) carbon dioxide emissions from the volcano in recent years. I think it highlights the potential of a large eruption and doesn’t really say that one is in any way imminent just that the volcano is still very much active and building towards its next eruption at some stage in the future.


AIMSIR
24 September 2018 19:05:32

I totally agree with both of the above posts.

Sometimes media can be very annoying whilst struggling to make a big story. Made a sucker out of me a few times.

I've been following Iceland met Office on a regular basis for quite some time..No panic there..They do have a good grip on what's going on.

Maunder Minimum
25 September 2018 07:20:43

Originally Posted by: doctormog 

 

Indeed, it is scaremongering nonsense. The paper itself is very interesting and refers to the (larger than expected) carbon dioxide emissions from the volcano in recent years. I think it highlights the potential of a large eruption and doesn’t really say that one is in any way imminent just that the volcano is still very much active and building towards its next eruption at some stage in the future.

Agreed. The only certainty is that Katla will erupt at some point, but as you say that could still be another 100 years away.

However, given its pattern of recent centuries, Katla is overdue for an eruption. When it does blow, it is likely to have a big impact on western Europe, which is why there is so much interest in it.


New world order coming.
Gray-Wolf
25 September 2018 08:04:03

Originally Posted by: Maunder Minimum 

 

Agreed. The only certainty is that Katla will erupt at some point, but as you say that could still be another 100 years away.

However, given its pattern of recent centuries, Katla is overdue for an eruption. When it does blow, it is likely to have a big impact on western Europe, which is why there is so much interest in it.

With ongoing changes to atmospheric circulation patterns we cannot say for sure Europe will be in the firing line though?

The past 3 winters have seen a pattern of lows entering the Arctic Basin via Svalbard so any eruption will likely see the plume directed away from Europe?

PW seems to be our self declared expert on such alterations to the Jet?


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Roger Parsons
26 September 2018 06:47:49

Originally Posted by: Maunder Minimum 

 

Agreed. The only certainty is that Katla will erupt at some point, but as you say that could still be another 100 years away.

However, given its pattern of recent centuries, Katla is overdue for an eruption. When it does blow, it is likely to have a big impact on western Europe, which is why there is so much interest in it.

Morning MM. I have just been reading an article by Anna Agnarsdóttir covering Sir Joseph Banks' interest in Icelandic vulcanism. You might enjoy a look.

http://blogs.bl.uk/european/2018/04/why-did-joseph-banks-go-to-iceland-in-1772.html

Roger


RogerP

West Lindsey district of Lincolnshire

Everything taken together, here in Lincolnshire are more good things than man could have had the conscience to ask.

William Cobbett, in his Rural Rides - c.1830

Chunky Pea
26 September 2018 14:30:55

Originally Posted by: Gray-Wolf 

 

With ongoing changes to atmospheric circulation patterns we cannot say for sure Europe will be in the firing line though?

The past 3 winters have seen a pattern of lows entering the Arctic Basin via Svalbard so any eruption will likely see the plume directed away from Europe?

PW seems to be our self declared expert on such alterations to the Jet?

It could have an affect on the Arctic circulation pattern though, which could have longer term implications for Europe. 


"You don't have to know anything to have an opinion"

--Roger P, 12/Oct/2022

Saint Snow
26 September 2018 14:58:07

On an related note, my eldest daughter was telling me about the Mary Shelley film she wants to watch.

I then went into the tale about the background to Shelley's Frankenstein story - the summer spent at the Geneva villa during the 'year without a summer' and the wet, cold weather driving them inside the house for long periods, where they passed the time writing horror stories. The 'year without a summer' was of course the result of the eruption of Tambora. And another cultural influence it had was the paintings of Turner, with the stunning sunsets caused by the tephra in the atmosphere.

My daughter wasn't as enthusiastic about the background as I am.

 


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

ozone_aurora
23 December 2018 00:14:14

Krakatau triggered a tsunami, hitting the coast around Indonesia's Sunda Strait

https://www.bbc.co.uk/news/world-asia-46663158.

 

doctormog
23 December 2018 07:40:48

It looks very nasty and given the past history and also (Anak) Karakatau’s “heritage” I think people are understandably worried.

It seems that the tsunami was caused by underwater activity or an underwater eruption, or at least that is the current theory. The volcano has been active for quite a long time so I’m not sure if this is a portent of something more significant.

Edit: I see that Darwin’s Volcano Ash Advisory Center (VAAC) has also noticed what appears to be an ash cloud to 55000ft in association with the eruption (although at time of writing this has yet to be confirmed).


Hungry Tiger
23 December 2018 13:33:38

Originally Posted by: ozone_aurora 

Krakatau triggered a tsunami, hitting the coast around Indonesia's Sunda Strait

https://www.bbc.co.uk/news/world-asia-46663158.

 

It's starting to look like a major incident.

 


Gavin S. FRmetS.

TWO Moderator.

Contact the TWO team - twomoderationteam@gmail.com

South Cambridgeshire. 93 metres or 302.25 feet ASL.



Gandalf The White
23 December 2018 14:53:16

Originally Posted by: Hungry Tiger 

 

It's starting to look like a major incident.

 

Indeed.  Obviously made worse by the tsunami htting at night and with no warnings (because it wasn't triggered by an earthquake).

Currently over 200 dead and 800 injured.

https://www.bbc.co.uk/news/live/world-asia-46664024

 

One positive is that this occurred not far from Jakarta so help has reached the area very quickly.

 


Location: South Cambridgeshire

130 metres ASL

52.0N 0.1E



Gandalf The White
23 December 2018 14:58:18

Originally Posted by: doctormog 

It looks very nasty and given the past history and also (Anak) Karakatau’s “heritage” I think people are understandably worried.

It seems that the tsunami was caused by underwater activity or an underwater eruption, or at least that is the current theory. The volcano has been active for quite a long time so I’m not sure if this is a portent of something more significant.

Edit: I see that Darwin’s Volcano Ash Advisory Center (VAAC) has also noticed what appears to be an ash cloud to 55000ft in association with the eruption (although at time of writing this has yet to be confirmed).

https://www.channelnewsasia.com/news/asia/indonesia-tsunami-what-is-anak-krakatoa-volcano-11057966

The 'child of Krakatoa' has grown to 1,000 feet asl since it emerged in 1928.  That's close on one foot per month.  I must admit I didn't realise it was that active.


Location: South Cambridgeshire

130 metres ASL

52.0N 0.1E



doctormog
23 December 2018 15:00:16
I didn’t realise it was growing at that rate. That really is very impressive.
Steve
23 December 2018 15:27:01
I've visited Anak Krakatau (during a quieter period) and have a piece of it on my bookshelf.

When you stand on the shore and look around at Rakata, Sertung and Panjang islands - the remaining fragments of the huge 1883 eruption - the sense of awe is almost overwhelming. You really feel you are standing on a pressure cooker and this small island, Anak Krakatau (the Child of Krakatau), is the valve ready to blow.

Indonesia is a wonderful, beautiful country...shaped the destructive power of the natural world.

Roger Parsons
23 December 2018 15:41:57
I found these websites useful when teaching about volcanoes and earthquakes.

USGS Earthquake Hazard page

https://earthquake.usgs.gov/ 

Volcano and Earthquake Resources page

http://www.colby.edu/geology/V&e.html 

Roger


RogerP

West Lindsey district of Lincolnshire

Everything taken together, here in Lincolnshire are more good things than man could have had the conscience to ask.

William Cobbett, in his Rural Rides - c.1830

DEW
  • DEW
  • Advanced Member
25 December 2018 22:08:16

I can understand Indonesian leaders promising a new tsunami warning system, on the principle of must be seen to do something - but it seems a bit doubtful that the 10 minutes or less warning in this case would have made a great deal of difference. For larger earthquake-based tsunamis, they will have to crack the problem of pilfering of spare parts from buoys or go for a (?) more expensive sea-floor system


"The most severe frost last night and this morning as I ever felt  ... the water upstairs in the basins froze in a few minutes after being put there this morn". Parson Woodforde's Diary, 14th January 1792, Norfolk

Chichester 12m asl

DEW
  • DEW
  • Advanced Member
27 December 2018 06:43:12

Eruption of Krakatau continues with the news that it's now the subject of  3-mile exclusion zone for aircraft.

Meanwhile Etna renews its activity. The associated earthquake is stated to be unusual  for an Etna eruption - I'd have said that too - and the end of the article has a slightly ominous tailpiece about increased seismicity at Vesuvius which has averaged an eruption every 60 years over 2 millennia. (Last eruption was 1944)

https://www.npr.org/2018/12/26/680283644/sicily-is-shaken-by-earthquake-as-mount-etna-erupts-once-again 


"The most severe frost last night and this morning as I ever felt  ... the water upstairs in the basins froze in a few minutes after being put there this morn". Parson Woodforde's Diary, 14th January 1792, Norfolk

Chichester 12m asl

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