iceland Bárðarbunga and Askja - Volcanic Activity

[john pike]

[john pike]

that looks like 2 quakes

 

although the 2nd one nowhere as big

 

 

[swebby]

that looks like 2 quakes

 

 

That it does, it also looks larger on the grims drum plot than the others,  IMO has it as 99% so I'm happy with the location/depth stated.

 

Storm looks like it's melting the snow.

 

I would also like to predict a major eruption for the start of next week - for no other reason than that after what seems like weeks of SW'lys over NW Europe the wind direction will change to give the most inconvenience from ash to European air travel.

[john pike]

 

another large jump again on that

[john pike]

Holuhraun Eruption One Month Old By Zoë Robert September 29, 2014 12:41

Photo: Geir Ólafsson.

The eruption in Holuhraun, in northern Vatnajökull, is one month old today. The eruption is one of the biggest in Icelandic history in terms of the quantity of lava, ruv.is reports. 

As of Saturday, the lava covered roughly 44.5 square km (17 square miles).

Seismic activity in the area continues and there are no signs that the eruption is declining.

According to the latest Status Report from the Civil Protection Department’s Scientific Advisory Board, published at 9:30 this morning, the subsidence of the Bárðarbunga caldera continues at a slightly slower rate and is now around 40 cm per 24 hours.

Three scenarios are considered most likely:

- The eruption on Holuhraun declines gradually and subsidence of the Bárðarbunga caldera stops.

- Large-scale subsidence of the caldera occurs, prolonging or strengthening the eruption in Holuhraun. In this situation, it is likely that the eruptive fissure would lengthen southwards under Dyngjujökull, resulting in a jökulhlaup and an ash-producing eruption. It is also possible that eruptive fissures could develop in another location under the glacier.

- Large-scale subsidence of the caldera occurs, causing an eruption at the edge of the caldera. Such an eruption would melt large quantities of ice, leading to a major jökulhlaup, accompanied by ash fall.

Other scenarios cannot be excluded.

From the Icelandic Met Office: The Aviation Color Code for Bárðarbunga remains at ‘orange.’

 

http://icelandreview.com/news/2014/09/29/holuhraun-eruption-one-month-old

[john pike]

http://www.ruv.is/frett/winter-arrives-at-holuhraun

[Crepuscular Ray]

The lava field has covered 44 sq km in that time!!! Bloody hell!

[Allseasons-Si]

Here we go again chaps

 

[The PIT]

Well it looks like the dike is well oiled with very little quakes going on. The caldera a different story. Another biggie another drop. Can't keep sinking for ever so when is it going to stop?

Can't see the eruption plume on the web cam so it's either died down or being blown close to ground by the strength of the wind.

[karyo]

Well it looks like the dike is well oiled with very little quakes going on. The caldera a different story. Another biggie another drop. Can't keep sinking for ever so when is it going to stop?

Can't see the eruption plume on the web cam so it's either died down or being blown close to ground by the strength of the wind.

The strong southerly wind blows the plume away from the webcam and there is also heavy rain! 

[Daniel*]

A magnitude 7+ earthquake would get the juices flowing this period of sustained activity, surely it must go boom at one point, I fear it may all fizzle out if nothing starts coming together...

[john pike]

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

 

until this storm passes the instruments will not be reliable 

 

unless of course another big quake happens

 

http://www.livefromiceland.is/webcams/bardarbunga/

 

the plume from the dyke is still strong but its getting hard to see at present

[If Wishes made Weather]

Tremor plots nearly off the scale in this storm this afternoon.

 

[john pike]

Monday
29.09.2014 16:31:22 64.625 -17.564 6.2 km 2.4 99.0 2.4 km SW of Bárðarbunga Monday
29.09.2014 16:04:09 64.497 -17.575 1.3 km 1.7 99.0 11.3 km E of Hamarinn Monday
29.09.2014 15:47:11 64.669 -17.460 0.1 km 2.1 99.0 4.5 km NE of Bárðarbunga Monday
29.09.2014 14:57:06 64.690 -17.458 0.4 km 2.2 99.0 6.5 km NNE of Bárðarbunga

 

 

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

updates coming in now

 

some v shallow there although not big

Edited September 29, 2014 by john pike

[john pike]

http://www.livefromiceland.is/webcams/bardarbunga/

 

just about see it now

[Allseasons-Si]

Round two maybe!

 

gps taking another tanking

 

[The PIT]

Round two maybe!

 

gps taking another tanking

 

barc_gps_3d_is2.png

Latest chart shows it going back up

[Allseasons-Si]

Latest chart shows it going back up

And back down again lol

 

 

i will have what barda is having at the mo ,but the overall trend is down

 

and look at that thing go

 

http://www.livefromiceland.is/webcams/bardarbunga

 

P.S hey!!where is rustynailer these days,he's not been on for a while!!!!!!!!!!.

Edited September 29, 2014 by Allseasons-si

[john pike]

Monday

29.09.2014 15:47:11 64.669 -17.460 0.1 km 2.1 99.0 4.5 km NE of Bárðarbunga Monday

29.09.2014 15:10:12 64.622 -17.429 0.0 km 2.5 99.0 5.1 km ESE of Bárðarbunga Monday

29.09.2014 14:57:06 64.690 -17.458 0.4 km 2.2 99.0 6.5 km NNE of Bárðarbunga

 

these are interesting at this depth

 

 

as you say allseasons the camera looks lively tonight

 

the gps i feel is probably being effected by the weather ( but cannot be certain either way on that though)

[Allseasons-Si]

the gps i feel is probably being effected by the weather ( but cannot be certain either way on that though)

Yeah,could be right there JP,would it be the rain or the wind,i was thinking the wind!

 

on the move down again though @ the mo

 

 

4.1 an hour ago

 

http://baering.github.io/

 

IMO

 

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

Edited September 29, 2014 by Allseasons-si

[NorthNorfolkWeather]

Sorry if the writing/ spelling poor. Doing this a thu phone

That 4.1 quake is only 900 metres down so that is above Sen level

Lots of lce above it, But getting much closer to ite surface

Edited September 29, 2014 by NorthNorfolkWeather

[Allseasons-Si]

Sorry if the writing/ spelling poor. Doing this a thu phone

That 4.1 quake is only 900 metres down so that is above Sen level

Lots of lce above it, But getting much closer to ite surface

No probs NNW

 

I thought that was 900m below sea level!,so  the gps readings are not @ground 0 then,so the readings are @ the top of barda itself?

 

so the reading is 900m-1000m above sea level then,still learning lol!

 

Right,i will catch up tomorrow,night all

 

Edited September 29, 2014 by Allseasons-si

[john pike]

http://www.livefromiceland.is/webcams/bardarbunga/

 

that looks pretty big tonight

[john pike]

29 September 2014 19:00 - from geoscientist on duty

There are no significant changes in earthquake activity other than the fact that fewer earthquakes have been detected today than in recent days but probably that stems from the high winds that have prevailed (with the consequence that smaller earthquakes go undetected). Since midnight, 30 earthquakes have been located in Bárðarbunga and 15 in the intrusive dike.

The largest earthquake since midnight was M 5.5, located at the southeastern caldera rim. This earthquake is among the largest measured at this central volcano since the onset of these events, 16 August. Up til now, four other quakes have been about 5.5 and one more definately larger, M5.6. All in all, 39 earthquakes have been M 5.0 or more during these events. However, data on the largest earthquakes is still being processed and therefore these numbers might change slightly.

Cloudy with a clue

This LANDSAT 8 satellite image from NASA at noon today, 29.09.2014, shows the craters and the lava stream in the center of the lava field, but since 26 September an almost 4 km long trail, about 2 square kilometers, has found its way parallel to other flows. Therefore, the combined surface area of the lava field is no less than 46 km2.

 

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

 

 

 

 

Edited September 30, 2014 by john pike

[john pike]

http://vmkerfi.vedur.is/vatn/vdv.php?p=0&station_id=218&page_id=281&direct=1

 

http://vmkerfi.vedur.is/vatn/vdv_data.php?Type=VV&Station=Austurland@@222&First=2014-09-29%2001%3A00&Last=2014-10-01%2001%3A00&Pageid=343&PageName=J%F6kuls%E1%20%E1%20Fj%F6llum%2C%20Upptyppingar%3B%20V289&PageType=Graph&Nrofgraphs=0&Graphnr=1&Plot=&lower=0&upper=50&X=0&language_id=4&screen_width=1688&screen_height=860&request_type=2&qc_view=0&borun=0#  click next to this

 

  Austurland: Jökulsá á Fjöllum, Upptyppingar; V289

 

thats quite a lift in level there

 

it might be weather related but thats a big jump

Edited September 30, 2014 by john pike