iceland Bárðarbunga and Askja - Volcanic Activity

[john pike]

Tuesday

16.09.2014 16:13:35 64.674 -17.393 6.7 km 3.1 99.0 7.4 km ENE of Bárðarbunga

[john pike]

 

note the  red line jump there

 

kre still high

 

so no sign of this dropping off yet

 

been looking at this and cannot find out where this one is for

 

any ideas???

[john pike]

http://www.volcanodiscovery.com/photos/bardarbunga/holuhraun-eruption/lava-fountains-12sep2014.html

 

some nice pics taken on the 12th

[Gael_Force]

 

note the  red line jump there

 

kre still high

 

so no sign of this dropping off yet

 

been looking at this and cannot find out where this one is for

 

any ideas???

 

On this map the stations are clickable - it is just above the glacier of Eyjafjallajökull.

 

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

[john pike]

cheers gael

could not see it for looking :-)

 

Tuesday
16.09.2014 16:13:35 64.674 -17.393 6.7 km 3.7 99.0 7.4 km ENE of Bárðarbunga

quake above now up to 3,7

[john pike]

16.09.2014
Today light southwesterly winds are expected at the eruption site in Holuhraun. Areas norheast of the eruption site can be affected by pollution. They are marked by Mt. Herðubreið in the north to Mt. Kárahnjúkar in the south. So Sulphur dioxide (SO2) concentration could become high in the eruption vicinity in Holuhraun and to the northeast. In situations like today where the wind is light, pollution can accumulate in depressions in the in the landscape and reach high concentrations.

 

http://www.almannavarnir.is/displayer.asp?cat_id=133

[john pike]

http://www.mbl.is/frettir/english/2014/09/16/an_eruption_in_the_sands_a_best_case_scenario/

[karyo]

http://www.mbl.is/frettir/english/2014/09/16/an_eruption_in_the_sands_a_best_case_scenario/

This is in agreement with what Jon Frimman says. Soon after this fissure closes, another eruption will take place nearby.

[john pike]

 

a few days old but worth a watch

[john pike]

Tuesday
16.09.2014 18:23:04 64.674 -17.460 7.4 km 3.5 99.0 4.9 km NE of Bárðarbunga

 

 

still deep enough to look like the feed is still strong

 

http://en.vedur.is/earthquakes-and-volcanism/earthquakes/vatnajokull/

Edited September 16, 2014 by john pike

[If Wishes made Weather]

Looks like another quake around 15 mins ago going off JonFr's monitors.  Possibly around Richter Scale 4?

[john pike]

16 September 2014 19:00 - from geoscientist on duty

Nearly 100 earthquakes have been detected in the automatic network since midnight. Just over 20 at Bárðarbunga and over 30 in the intrusion under Dyngjujökull and near the eruptive site. Earthquakes at the northern rim of Bárðarbunga caldera today were at 09:13 M3,4 and at 10:36 M4,8 and at 16:13 M3,7. At the southwestern rim there was an earthquake at 14:47 M5,2. No distinctive subsidence was associated with that earthquake. Some of the GPS stations have shown a change in direction since yesterday. Scientists will take a closer look on that change.

 

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

[john pike]

EASTERN GREENLAND                       

http://www.emsc-csem.org/Earthquake/alert/?id=ow466;SC3&date=2014-09-16

 

http://www.emsc-csem.org/Earthquake/alert/?id=UER57;LDG&date=2014-09-16

 

looks like greenland but not logged yet

Edited September 16, 2014 by john pike

[If Wishes made Weather]

Amazing that JonFr's equipment could track this.  I had assumed (wrongly) that somehow they would only 'see' local events to Iceland.

[john pike]

hi tim

 

the effect on some of these quakes can be felt elsewhere

 

they havent registered the greenland ones yet either

Edited September 16, 2014 by john pike

[john pike]

Tuesday
16.09.2014 20:02:53 64.677 -17.470 5.0 km 4.8 99.0 4.9 km NE of Bárðarbunga

 

there you go tim

 

shows how slow these are being updated

 

chances are the ones on ecms were shock waves from iceland instead

Edited September 16, 2014 by john pike

[Filski]

The gradient of the line on the Bardabunga GPS is not as steep the last 24hrs. No big drops with the recent quakes either.

Potential sign that deflation is slowing?

[NorthNorfolkWeather]

The gradient of the line on the Bardabunga GPS is not as steep the last 24hrs. No big drops with the recent quakes either.

Potential sign that deflation is slowing?

Not necessarily.

 

The ring faults will absorb a certain amount of stress without noticable movement, but then they'll go with a bump

[karyo]

I am impressed by all the activity in Bardarbunga today! Yes, the caldera is not sinking much. This volcano continues to surprise.

Karyo

[john pike]

not as much but too hard too say it this means that much at present

 

 

 

[Buckster]

if we see the graph spike upwards off the top of the chart

 

do we assume its erupted and the gps station has gone sub-orbital ?

[john pike]

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

 

looks impressive again tonight

 

also that looks slightly further west again

[john pike]

Tuesday

16.09.2014 18:23:04 64.674 -17.460 7.4 km 3.9 99.0 4.9 km NE of Bárðarbunga

this was before the 4.8

 

still fairly deep

[If Wishes made Weather]

if we see the graph spike upwards off the top of the chart

 

do we assume its erupted and the gps station has gone sub-orbital ?

 

Perhaps?  Although the chart is interesting as the longer moving average would suggest that there is perhaps a bit of inflation at present that perhaps ties in with the number of quakes today lower in the magma chamber or possible input feed?

[If Wishes made Weather]

Tuesday

16.09.2014 18:23:04 64.674 -17.460 7.4 km 3.9 99.0 4.9 km NE of Bárðarbunga

this was before the 4.8

 

still fairly deep

 

Interesting that they appear to have upgraded this one from (I think) a 3.5 or so before, bearing in mind that the difference in energy between the two appears to be in excess of an amazing 30 gigajoules.