Volcano Watch 2014

a reply to: Moshpet

I know, today it is no different, the M5.3 is registered on all maps as a big one, but the M4.3 and M3.0 are but a tiny fraction compared to the M5.3.
There are best seen on VI.IDYN.

Big

Date Sept 11 10:39 a.m. 08:39 a.m in Iceland.

Seems like Camera 2 is replaced, or just zoomed in. Its way closer than before.


Earthquake activity is getting stronger again, after few days or quieter activity. The main activity is in Bárðarbunga once again. Its getting closer and closer that the caldera collapses. People in Iceland fear that it causes great glacial flood, which cuts roads and clears everything on its path. The floods would go towards north side of Vatnajökull. Even bigger concern is highly likely phreatomagmatic eruption, much like Laki eruption in 1783.

EDIT: Well, this is interesting:

curious wat the cme impact will do tonight... (an X1 was headed to us ) ??

a reply to: ressiv

impact ? x1.6 ? well it will make a nic elight show that's it !!!

for the gloom and doom this need to be more like a x15 like in 1989 here in Québec blackout

G'day Volcano Watchers
The obligatory captures:
Cam 1 Fog and haze


Cam 2 More fog and haze


I am still waking up so the news is not here yet :/

M.

The news:

Pollution east up the afternoon
www.ruv.is...

Sulfur pollution from the eruption site in the hollow lava rose in the East in the afternoon, both on the plant and recommend the Egilsstöðum. Highest at the concentration of sulfur dioxide Reyarfirði almost 650 micrograms at about 13:20 but quickly dropped back.

One of the reasons I do not think that the masses of death due to SO2 in Laki would be likely in this day and age, is due to the fact we can monitor these gasses and issue warnings. Unlike in the 1700's.

Gasgrímur rokseljast the volcanic eruption
www.ruv.is...

Weather service warns of high concentrations of sulfur gases from the eruption of lava in the hole. It can be expected that the area of ​​the northern east coast north Weaponfirth will be most affected. Gasgrímur and gas meters rokseljast because of the eruption. Lage has run twice at the biggest seller.

Though it is notable that gas detectors are selling out quite rapidly in Iceland. Proactive people trying to get a jump on their neighbors.


The eruption continues unabated
www.ruv.is...

Do not reduce the eruption of lava pocket. This was stated at a meeting of scientists Council this morning. Based on observations at the level of volcanic activity is similar to the last few days.

Lava flows eastward small proportion spreads out to the north side of the tongue flows on the Jokulsa the mountains and the river flæmist east lava. Not in explosions where lava flows into the river, but gufubólstrar ascend to heaven.

Hazards due to Gross head of the pack
www.ruv.is...

The uncertainty about the progress of the eruption of Bárðarbunga. Geologists and Civil Protection Deeply concerned by the physical settlement of Bárðarbunga probability of an eruption is thought to have increased after starting up in the box. Helgi Björnsson glaciologist says being important to know the terrain under Bárðarbunga.

Then is also important to examine the exact thickness of the ice. He says to go to erupt within the box is the serous matter, not least because Feykir relative Gross head, but mugs carton in the 1800 meters so the water there would be the melting would break loose down a large steep, five times more steep than when the eruption of Dyngjujökli and eruption. If gysi the edges is essential where the eruption occurs. If it's outside of the basin can erupt lead anywhere, Skjálfandafljót Dyngjujökullinn Jökulsá and down the mountains, south to Grim water and Köldukvís.

It seems there is concern that if the Bardarbunga crater breaks, all the water from the melted ice (etc) would flow in an unpredictable manner, and from a steeper slope.

Holu­hraun the most dan­gerous place in Ice­land
www.mbl.is...

For some reason, a few people seems to think that 'the closings around the blowout Lava Do not Apply to Them. People without proper authorizations,-which are Issued to Scientists and I sometimes Journalist, have been arrested around the blowout lava eruption.

Willow Reynisson, Department Manager at the Department of Civil Protection stresses the importance of respecting the closings. They are for your own good.

"People in the town of Reydarfjörður experienced a great deal of discomfort yesterday Because of gases from the eruption. The distance from the site of the eruption to the town are some 80 kilometers," Willow said in an interview with mbl.is

Definitely check out the slideshow on the above page!

en.vedur.is...

In this article, updated information on the Bárðarbunga seismic events and volcanic activity is given with daily fact sheets and/or status reports. New material is added to the top of the article. The original information is at the end of the article. Therefore, bottom to top, this article gives an overview of events. Below is a calender with a short-cut to each day within this long text:

Bárðarbunga – turning Dettifoss into Niagara Falls
all-geo.org...

While international concern about an eruption at Bárðarbunga is focussed on flight disruption, a jökulhlaup (meltwater flood) is the most destructive potential outcome of a subglacial eruption. It would travel north from the glacier along the Jökulsá á Fjöllum river, and for this reason roads have been closed in the area. Edwin Baynes is a PhD student at Edinburgh University who studies past jökulhlaups in this area. In this guest post, he puts such a potential flood in context.

a reply to: earthling42

en.wikipedia.org...

The Richter magnitude scale (also Richter scale) assigns a magnitude number to quantify the energy released by an earthquake. The Richter scale is a base-10 logarithmic scale, which defines magnitude as the logarithm of the ratio of the amplitude of the seismic waves to an arbitrary, minor amplitude.
As measured with a seismometer, an earthquake that registers 5.0 on the Richter scale has a shaking amplitude 10 times that of an earthquake that registered 4.0, and thus corresponds to a release of energy 31.6 times that released by the lesser earthquake.[1]

Richter magnitudes[edit]
The Richter magnitude of an earthquake is determined from the logarithm of the amplitude of waves recorded by seismographs (adjustments are included to compensate for the variation in the distance between the various seismographs and the epicenter of the earthquake). The original formula is:[15]
M_\mathrm[L] = \log_[10] A - \log_[10] A_\mathrm[0](\delta) = \log_[10] [A / A_\mathrm[0](\delta)],\
where A is the maximum excursion of the Wood-Anderson seismograph, the empirical function A0 depends only on the epicentral distance of the station, \delta. In practice, readings from all observing stations are averaged after adjustment with station-specific corrections to obtain the M_\text[L] value.


Because of the logarithmic basis of the scale, each whole number increase in magnitude represents a tenfold increase in measured amplitude; in terms of energy, each whole number increase corresponds to an increase of about 31.6 times the amount of energy released, and each increase of 0.2 corresponds to a doubling of the energy released.

.

I think the issue is that you are expecting there to a be a linear 1:1 ratio in sizes of the quakes on the plots. When there isn't such a ratio.

Each step in magnitude is gigantic, when compared to the step preceding it.

(This is a crude approximation, fwiw.)

For example if you walked in magnitude steps:

at M1 in one step you would have moved 1 meter.
At M2 you would have moved 31.6 meters
At M3 you would have moved 998.56 meters
At M4 you would have moved 997122.07 meters

And so on.

I hope that helps.
M.

Subsidence by hundred of meters skies (possible)

www.ruv.is...

The caldera in Bard Bunga volcano could subside by hundred of meters, say two of Iceland's top geophysicists. The caldera has sunk in recent days by at least 20 meters, increasing the likelihood of an eruption there.

In a short article published yesterday, geophysicists Magnus Tumi Gudmundsson and Pall Einarsson at the University of Iceland's Institute of Earth Sciences state that 'the subsidence in Bard Bunga eventing makes it harder to PREDICT future development of events in north-western Vatnajokull glacier. A magma intrusion has migrated some 40 kilometers from beneath Bard Bunga, to the north, Leading to a lava eruption north of the glacier's margin, in the lava field of lava pocket.

No wonder the airlines were worried: Stunning pictures of Bardarbunga erupting days after airlines were banned from flying above it

www.dailymail.co.uk...

Dramatic images of the volcano Bardarbunga violently spewing lava and molton ash have emerged - suggesting that Iceland was quite right to ban all flights over the area.
Craters spit out lava as molten rock flows into a river in the stunning images taken over the Holuhraun lava fields in the Icelandic highlands.
The country's Met Office issued a 'red alert' at the end of August after the Bardarbunga volcano, which lies underneath the Vatnajökull glacier, experienced a 'small' eruption.

Definitely go see the images at the above link.


M.

originally posted by: earthling42
a reply to: muzzy

Sorry for my late reply muzzy, i made that screenshot at 9 September, time 10:08.10 p.m.
There is a two hour difference between the Netherlands and Iceland so in Iceland the time was 08:08.10 p.m.

Hey thats OK, thanks for replying.
That helps with the continuity, I didn't have anything past 5pm Iceland on the 9th.
I will add it to the 09 page, if thats OK?
and your last one too?
I miss so much by having to sleep!

a reply to: Moshpet

Indeed

This one is great, shows the whole scene from above the river back towards the fissure
i.dailymail.co.uk...

Photo gallery

gudlauguragnar.wix.com...#!volcano/c1hz4

Enjoy

M.

a reply to: Thebel

yes it does look closer on cam2 now, but its pretty hazy right now

Sourcing the web cams is driving me crazy!
now its available on livefromiceland (the official Mila pages)
the live video on u-tube I used for 48hrs has expired, can't find a new one yet
pebbles where I got some screenshots a for a few days has lost the link

from what I have been reading these live feeds gobble up terabytes of data, so I can understand that one individual person probably can't keep them running for long. Even taking the screenshots uses a bit, I have used 2.43GB myself in the last 23hours alone doing that.

a reply to: muzzy

that is why i post the original links to so you and all other members can download and use them

I will post the date under the pictures if i post them.

Btw, a few times i have visited your site, have it in my favorites.

further to post by: muzzy

Re Date Sept 11 10:39 a.m. 08:39 a.m in Iceland. image by earthling42
I got that one, @ 08:36:35, I can't see any change in 2:25 minutes between the two, only difference is one was made in Holland and the other one in New Zealand
Good to have the back up though.

a reply to: Moshpet

Yes that is helpfull, thanks

There is quite some activity now, and to me it seems like the volcano next to Bardarbunga is in play as well.
But there is no data of an eruption from Tungnafellsjökull

web cam images-11-09-2014
I'll add a couple more later, which I have just taken, have to go out for about 6 hrs.
The difference in size (height) is the squatter ones are Moshpet or off the u-tube live feed yesterday, I can't really change them to make them all the same size without distorting the quality.

a reply to: earthling42

thanks for that

Seems we had a 5.2 in the caldera region in the past two hours.

www.vedur.is...=table
Fimmtudagur
11.09.2014 20:37:44 65,136 -16,302 5,2 km 0,6 99,0 4,8 km SSA af Herðubreið

baering.github.io...

An awesome gallery here
mashable.com... gn=buffer

Enjoy
M.