iceland Bárðarbunga and Askja - Volcanic Activity

[Sussex Jules]

Biggish one about 10 minutes ago.

[jonboy]

two actually as below 10 mins apart

Monday

13.10.2014 09:26:47 64.616 -17.365 6.8 km 4.5 99.0 8.2 km ESE of Bárðarbunga

Monday

13.10.2014 09:25:06 64.771 -17.876 1.1 km 0.7 90.02 10.4 km ENE of Nýidalur

Monday

13.10.2014 09:16:48 64.667 -17.442 2.0 km 4.8 99.0 5.0 km NE of Bárðarbunga

[BrickFielder]

 GPS signals suggest to me that crustal deformation has calmed down a little.

 

 

Perhaps there is just a touch of uplift indicated , possibly towards the fissure eruption or the caldera, it is very difficult to tell which from these charts.

 

Compare this with the movements seen last week.

 

 

Charts are from the Icelandic Met  Office  web site.

 

http://en.vedur.is/earthquakes-and-volcanism/gps-measurements/bardarbunga/

 

 

So no obvious large movements.

 

Both the DYNC and VON Sils show a little uplift over the last day or so.

 

 

Charts are from the University of Iceland  web site.

 

http://jardvis.hi.is/gps_timaradir_vid_bardarbungu

 

 

 

It would be difficult to point to where exactly the uplift is even from these charts, but it suggests to me that more magma is coming up from deep than can be erupted at the moment.

 

Vonasgard temor mointoring shows some evidence of increasing tremor in the 2- 4Hz range. This suggests to me deeper rock breaking as magma moves up from a deeper source. (Magma movement nearer the surface tend to have a lower frequency in my opinion).

 

 

Charts are from the Icelandic Met  Office  web site.

 

http://hraun.vedur.is/ja/oroi/allarsort.html

 

 

 Does this mean that Bárðarbunga has stopped subsiding.  With the battery for the transmitter for the Bárðarbunga monitoring hardware run out, it is hard to tell.  Going on past episodes it seems very unlikely that the subsidence is not continuing.

 

Yesterday there were quite a few deeper earthquakes  (11- 13km deep) east of Kistufell which I think is below the fissure, which might suggest magma from this level trying to push up to the shallower levels.  Quite a few of the earthquakes this morning have not been verified yet so it is hard to see if this is continueing.

 

Geo Scientist on duty reports

 

Over 100 quakes have been registered during past 24 hours in the caldera and about 25 in the northern part of the intrusion.

 

http://en.vedur.is/earthquakes-and-volcanism/articles/nr/2947

 

My best guess wiould be that the eruption might pick up for a little bit or even start at a new point over the next few days. The caldera subsidence is an unknown quantity, although I would guess that it is continuing.

 

There has been a bit of dicussion on various blogs about some new cauldrons having formed at the caldera. It is not clear whether these are in the caldera or just outside like the previous ones. This would suggest to me some geothermal activity has gone on and magma is closer to the surface than it has been. My best guess would be that the feed from Bárðarbunga into the fissure is more active. I could be completely wrong about this and they could be in the caldera, equally cauldrons take time to develop so they could be from previous activity.

 

There has also been some discussion about the amount of Chlorine type gasses being emitted from the eruption along with the SO2. Sounds to me like the cocktail of gases emitted can be pretty unpleasant.

 

Any interpretations in this post are my amateur ones and you should bear in mind that phyiscal equipment at the remote sites is subject to harsh conditions which may actually reflect other conditions than those I interpret.

 

 

[NorthNorfolkWeather]

Hi BF,

 

Interestingly, the total number of quakes over the period they view here is on the increase again.  A couple of days ago, it got as low as 176, currently it's back up over 300.

 

Couple of quakes over M4, one quite shallow

[Allseasons-Si]

Afternoon barda gang

 

nice to see the gps up and running again

 

i also want to point out that there seems to be a increase in EQ's @ the fissure and all of late some increase NE of Askja,also a few @ Nýidalur

 

http://baering.github.io/

 

maybe we might see another fissure eruption somewhere!,i do not know and only guessing.

 

just found this,that's a big hotspot

 

http://hraun.vedur.is/ja/skyrslur/hotspot/node3.html

Edited October 13, 2014 by Allseasons-si

[Midlands Ice Age]

The GPS long term is showing a M5.2 recenttly, but it is not on the listing of te quakes.

 

Just seems strange

 

MIA  

[Allseasons-Si]

The GPS long term is showing a M5.2 recenttly, but it is not on the listing of te quakes.

 

Just seems strange

 

MIA  

Hi MIA

 

that's the 5.2 from yesterday evening,if you look @ the long term gps you will see there is 3 5+'s along that strait blue line(the red dotted vertical lines),coincide it with the 3 lines on the short range gps,.

 

here is my explanation of the long range gps,the black lines are @ 00:00 hrs and the red lines are @ 12:00 hrs

 

 

hope that helps.

Edited October 13, 2014 by Allseasons-si

[john pike]

http://www.emsc-csem.org/Earthquake/earthquake.php?id=404069

 

Edited October 13, 2014 by john pike

[Allseasons-Si]

I reckon a 4+EQ is incoming.

 

just waiting for the update from the IMO site

 

Monday
13.10.2014 16:15:00 64.618 -17.335 1.1 km 2.3 90.11 9.5 km ESE of Bárðarbunga Edited October 13, 2014 by Allseasons-si

[john pike]

http://www.emsc-csem.org/Earthquake/earthquake.php?id=404069

 

hi all

 

its the one above but not checked at mo yet

 

not sure why

[Allseasons-Si]

http://www.emsc-csem.org/Earthquake/earthquake.php?id=404069

 

hi all

 

its the one above but not checked at mo yet

 

not sure why

Thanks john,just looked @ the timescale on that drum plot you posted^

 

it's over 2 hours now,that's a long MO break ,i only get half an hour lol!

 

USGS has it @ 4.6

 

http://earthquake.usgs.gov/earthquakes/eventpage/usb000slil#summary

 

mmmm!!! still no IMO update.

Edited October 13, 2014 by Allseasons-si

[john pike]

http://www.emsc-csem.org/Earthquake/earthquake.php?id=404081

 

and another

 

4.6

 

come on imo wheres the checks?

 

http://en.vedur.is/earthquakes-and-volcanism/earthquakes/#view=table

 

http://www.emsc-csem.org/Earthquake/alert/?id=UOS64;BGSG&date=2014-10-13

 

5+ ??

Edited October 13, 2014 by john pike

[Yarmy]

Iceland 1 Holland 0

I daresay the IMO staff are somewhat distracted.

[john pike]

hi yarmy

 

haha  fair point

[Allseasons-Si]

http://www.emsc-csem.org/Earthquake/earthquake.php?id=404081

 

and another

 

4.6

 

come on imo wheres the checks?

 

http://en.vedur.is/earthquakes-and-volcanism/earthquakes/#view=table

 

http://www.emsc-csem.org/Earthquake/alert/?id=UOS64;BGSG&date=2014-10-13

 

5+ ??

Yes John,def bigger than the other one

 

 

and what's going on here like,big pressure build there!

 

 

i suspect another biggy after this

 

 

Iceland 1 Holland 0

I daresay the IMO staff are somewhat distracted.

 

lol,IMO staff got there feet up @ the mo.

 

hang on, i am just on the phone to them now

 

 

be back in an hour.

Edited October 13, 2014 by Allseasons-si

[john pike]

[john pike]

Monday

13.10.2014 19:00:15 64.671 -17.448 3.1 km 4.7 99.0 5.1 km NE of Bárðarbunga

 

http://en.vedur.is/earthquakes-and-volcanism/earthquakes/#view=table%C2'> 19.00 one updated

[john pike]

http://www.flashscores.co.uk/match/KtLth6b1/#match-summary

 

the latest update from iceland

[john pike]

Bárdarbunga volcano news & activity updates Bardarbunga volcano update: eruption continues with little changes

Monday Oct 13, 2014 17:18 PM | BY: T

Updated map of the lava flows as of 9 Oct (Univ. Iceland / IMO)

Epected area of air pollution from the eruption today (IMO)

During the past days, the eruption has continued at similar intensity and with similar lava effusion rates as before. The flow field continues to expand mainly to the north and east and cover now more than 55 square kilometers, with an estimated volume of approx. 0.77 cubic km.

At the main vent along the Holuhraun fissure, a violently degassing lava lake has formed, while fountains have decreased or almost disappeared.

Seismic activity remains mostly at the Bardarbunga caldera, which keeps subsiding. 21 earthquakes greater than M3.0 were recorded over the last 48 hours in or around the caldera. The largest ones were M5.2 at 08:43 and 21:23 on Sunday.

Little seismic activity is now detected in the northern part of the dyke and around the eruption site.

GPS measurements show minor movements. No great changes were detected.

Air pollution with SO2 from the eruption remains significant - depending on wind directions mostly to the N and E of the eruption site.

• All news about: Bardarbunga volcano
• Information about: Bardarbunga volcano

 

 

http://www.volcanodiscovery.com/bardarbunga/news/48395/Bardarbunga-volcano-update-eruption-continues-with-little-changes.html

[john pike]

http://m.emsc.eu/earthquake/earthquake.php?evid=404119

[john pike]

http://hraun.vedur.is/ja/drumplot/von.png

[Midlands Ice Age]

A bit clearer on the webcams this morning....

but seem to be pointing more upwards into the clouds.

Forground totally covered in snow now.

 

no updates on eq yet by IMO .No large ones  on the charts overnight, but plenty of movement on the gPS

 

MIA

[Allseasons-Si]

Afternoon bardabuddies

 

a +4 EQ incoming

 

 

not checked yet though

 

http://baering.github.io/

http://en.vedur.is/earthquakes-and-volcanism/earthquakes#view=table

 

could be a 5+ eq.

 

mmmm!!!!,a couple of 2's and a 3,not as big as i thought,maybe another update in a bit!

 

Tuesday
14.10.2014 13:05:26 64.681 -17.469 8.9 km 2.8 99.0 5.3 km NNE of Bárðarbunga

Tuesday
14.10.2014 13:03:33 64.675 -17.463 7.1 km 3.1 99.0 4.9 km NE of Bárðarbunga

Tuesday
14.10.2014 13:02:10 64.670 -17.507 8.2 km 2.8 99.0 3.5 km NNE of Bárðarbunga

 

EMSC has it @ 4.5

 

http://www.emsc-csem.org/Earthquake/earthquake.php?id=404205

 

there you go,i knew it was bigger.

 

Tuesday
14.10.2014 13:03:33 64.675 -17.463 7.1 km 4.7 99.0 4.9 km NE of Bárðarbunga Edited October 14, 2014 by Allseasons-si

[NorthNorfolkWeather]

And a 3 following on a little later. 

 

Still very active overall

[Allseasons-Si]

Coming in thick and fast now

 

Tuesday
14.10.2014 15:11:17 64.680 -17.475 8.2 km 2.0 99.0 5.1 km NNE of Bárðarbunga Tuesday
14.10.2014 15:10:47 64.665 -17.387 3.8 km 2.6 99.0 7.2 km ENE of Bárðarbunga Tuesday
14.10.2014 15:08:34 64.687 -17.429 9.5 km 3.0 99.0 7.0 km NE of Bárðarbunga Tuesday
14.10.2014 14:18:51 64.572 -17.453 0.1 km 2.2 99.0 8.4 km SSE of Bárðarbunga