The Iceland Volcano Thread

maquiladora · 27-03-2013 09:57AM

A quake 8.4 km south of Hekla early this morning. Hard to know its related or not at that range. Different position to the other quakes too.

It seems they are keeping the alert level active for the moment.

andrioolis · 02-04-2013 09:59AM

a lot of activity? new eruption? huge EQ 5.4 in last 12h

maquiladora · 02-04-2013 10:19AM

andrioolis wrote: »

a lot of activity? new eruption? huge EQ 5.4 in last 12h

No, it's in the Tjörnes fracture zone so almost certainly purely tectonic.

andrioolis · 02-04-2013 10:31AM

maquiladora wrote: »

No, it's in the Tjörnes fracture zone so almost certainly purely tectonic.

can it activate hekla and trigger the eruption? as it wasn't very quite in last couple weeks

maquiladora · 02-04-2013 11:04AM

andrioolis wrote: »

can it activate hekla and trigger the eruption? as it wasn't very quite in last couple weeks

Hekla is at other end of Iceland so I'd say it's very unlikely it would have any effect on it.

rickdangerouss · 27-04-2013 10:23AM

Hekla is still having some Micro EQ'S. Ground deformation has increase allot since the first episode of this new activity.
Other than these signs, business as usual for Hekla.

http://hraun.vedur.is/ja/hekla/

This SIL'S are up, how ever the servers are having issues for the last few days.

The history of the last few weeks are on the below link.

http://translate.google.at/translate?hl=en&sl=is&tl=en&u=http%3A%2F%2Fhraun.vedur.is%2Fja%2Fviku%2Fsidasta%2F

The inflation for the last 4 weeks is equal to the amount of the last 3 years.

http://strokkur.raunvis.hi.is/~sigrun/HEKLA.html

http://www.eldgos.is/hekla/

maquiladora · 16-08-2014 10:02AM

Earthquake swarm at Bárðarbunga with harmonic tremor. Maybe something interesting down the line?

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

http://hraun.vedur.is/ja/oroi/dyn.gif

rickdangerouss · 16-08-2014 11:05AM

maquiladora wrote: »

Earthquake swarm at Bárðarbunga with harmonic tremor. Maybe something interesting down the line?

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

http://hraun.vedur.is/ja/oroi/dyn.gif

Maybe few more weeks of swarms and add allot of 3+ earthquakes later.

rickdangerouss · 16-08-2014 01:10PM

rickdangerouss wrote: »

Maybe few more weeks of swarms and add allot of 3+ earthquakes later.

Just encase, something happens. Some of the links below

http://hraun.vedur.is/ja/arg/png/bardarbunga_15d.png

Look for minor jokullhlaup, link below. Could one of started?

http://vmkerfi.vedur.is/vatn/vdv.php?p=0&station_id=221&page_id=333&direct=1

http://eldgos.is/bar%C3%B0arbunga/

Nearest webcam that is still working, link below

http://vedur2.mogt.is/grimsfjall/webcam/

Also look at road webcams..

http://www.vegagerdin.is/upplysingar-og-utgafa/ur-vefmyndavelum/

maquiladora · 16-08-2014 01:15PM

rickdangerouss wrote: »

Maybe few more weeks of swarms and add allot of 3+ earthquakes later.

Jón Frímann thinks a minor eruption is possibly underway. Ice is very thick there so only a major eruption would get through that to the surface, but it could release a lot of meltwater.

maquiladora · 16-08-2014 03:35PM

IMO statement :

Earthquake swarm by Bardarbunga volcano

16.8.2014

At about 3 a.m. this morning (16 August), an earthquake swarm began by Bárdarbunga volcano in NW Vatnajökull ice cap. Over 200 earthquakes have been recorded. The largest earthquakes have magnitudes of around 3 and over. This is the most intense earthquake swarm in this area for years. Measurements indicate magma movement. The IMO is following the situation closely and has alerted the Civil Protection Agency and aviation authorities.

http://en.vedur.is/about-imo/news/nr/2934

rickdangerouss · 16-08-2014 05:06PM

LATEST UPDATE

Swarms at Bunga are ongoing. Quake count 48 hrs has risen to 277 (one green star).
http://en.vedur.is/earthquakes-and-volcanism/earthquakes/

This is #bardabunga hasttag at twitter ;-)

Most significant recap for last three hours, is that IMO and National Police Commissioner´s (on both sides of the Island) have put up warning and aviation code for Bárðarbunga has been changed to Yellow. Flood (if any) can flow both ways, three actually, but we do not at present time know for certain that any melt has started. IMO expert informed in news (RUV 4 hours ago) “they can not rule out magma has penetrated to surface” under the 700 meter thick glacier, and this takes days to melt.

Quoted from "Islander" from another blog.

Looks like maybe a fissure has opened up, could be a few more days of melting, before it hits fresh air.

maquiladora · 16-08-2014 07:13PM

It may just have been a small eruption where we won't actually see anything at the surface. Or this could be just a phase before something else happens. There hasn't been a major eruption there since the 1400's so it's eruptive behaviors are not as well understood as some other volcanoes in Ireland. Every volcano is different.

Secretly hoping for a major fissure eruption, though there's no evidence to suggest that will happen. Would be amazing to witness in our lifetime.

rickdangerouss · 16-08-2014 09:01PM

Looking more and more like a repeat of the Gjalp fissure event of 1996, just in another area.

http://www.nature.com/nature/journal/v389/n6654/fig_tab/389954a0_F2.html

http://earthice.hi.is/gjalp_eruption_vatnajokull_309_1310_1996

I understand that some flights will be on the way to the area, next few days. (Weather dependent)

Small VE1 or VE2, unless things change in a upward way.

maquiladora · 16-08-2014 09:52PM

Activity in Bárdarbunga volcano

16.8.2014

Seismic activity in Bárðarbunga volcano has increased. A seismic swarm has been ongoing since 03AM this morning, and near continuous earthquakes have been occurring since then. The depths of earthquakes in the present swarm are in the upper crust and their magnitudes are mainly around 1.5; a few earthquakes are of magnitude greater than ML3.

Long-term seismic and GPS data indicate that there is increased unrest in the northwestern region of Vatnajökull glacier, where Bárðarbunga is located:

Over the last seven years seismic activity has been gradually increasing in Bárðarbunga and the fissure swarm north of the volcano. This activity dropped down at the Grímsvötn eruption in May 2011, but soon after, the activity started to gradually increase again and has now reached similar level of activity to that just before the Grímsvötn eruption. Earlier this year, in the middle of May 2014, there was a small swarm of over 200 events and now the present swarm has already generated at least 300 earthquakes.

Since early June 2014, displacements at GPS stations around Vatnajökull (Hamarinn, Grímsfjall, Vonarskarð and Dyngjuháls) show an increased upward movement and away from Bárðarbunga.

Together, these two systems indicate magma movements in Bárðarbunga. At 15:00 on August 16, there is no unequivocal indication that magma has reached the surface.

http://en.vedur.is/about-imo/news/nr/2936

rickdangerouss · 17-08-2014 10:37AM

3D plot of the EQ'S to date for this swarm.

Thanks to DFM for doing this.

maquiladora · 17-08-2014 07:42PM

Swarm is still ongoing. 8 quakes of >3 since midnight. Still no indication of anything on the surface.

rickdangerouss · 17-08-2014 08:30PM

maquiladora wrote: »

Swarm is still ongoing. 8 quakes of >3 since midnight. Still no indication of anything on the surface.

Now 10. Last +3 is in the Kistufell volcano.

17.08.2014 18:15:02 64.778 -17.222 7.6 km 3.3 99.0 0.7 km WSW of Kistufell

Over 1000+ small Eq's.

Iancar29 · 17-08-2014 09:00PM

Booking flights to Iceland .... gets camera gear ready :rolleyes: :pac:

The One Doctor · 17-08-2014 10:11PM

Iancar29 wrote: »

Booking flights to Iceland .... gets camera gear ready :rolleyes: :pac:

Meh, if anything happens it'll be a small puff of steam in the grand scheme of things. People really only get excited if it's a very large eruption (VEI 5+).

That's why I love Ireland. No nasty weather and no chance of being evaporated by magma.

Rikand · 18-08-2014 09:19AM

The One Doctor wrote: »

Meh, if anything happens it'll be a small puff of steam in the grand scheme of things. People really only get excited if it's a very large eruption (VEI 5+).

That's why I love Ireland. No nasty weather and no chance of being evaporated by magma.

If there was a serious eruption, 5+ what are the chances of it dropping a tsunami somewhere that could wreck ireland ?

morticia2 · 18-08-2014 10:45AM

Rikand wrote: »

If there was a serious eruption, 5+ what are the chances of it dropping a tsunami somewhere that could wreck ireland ?

Zilch, I'd say, it's inland and under a glacier, so large earthquakes and landslips shouldn't displace seawater. Major tsunamis tend to be caused by subduction zones or by huge landslips (either coastal or underwater) that end up displacing seawater abruptly.

maquiladora · 18-08-2014 11:56AM

Tremor seems to have entered a new phase, though there hasn't been any really significant quakes associated with it yet anyway.

http://hraun.vedur.is/ja/oroi/dyn.gif

Aviation code has also been upgraded from yellow to orange.

Edit: Tremor is dropping back down again.

maquiladora · 18-08-2014 07:24PM

A webcam has been set up facing Bárðarbunga. The volcano is 30km away.

http://vedur2.mogt.is/grimsfjall/webcam/

rickdangerouss · 18-08-2014 08:52PM

The situation in Bárðarbunga volcano in NW Vatnajökull glacier has not changed today. The Civil Protection scientists committee held two meetings today with earth scientists from the Icelandic Meteorological Office and the University of Iceland. There is a very strong indication of magma movement east of Bárðarbunga caldera and on the edge of Dyngjujökull near Kistufell. Conductivity is high in Jökulsá á Fjöllum for the time of year.
Around 800 earthquakes have been detected since midnight. The strongest event was at 02:37 of the magnitude 4,5.

Civil Protection is still on Uncertainty Phase, which means that course of events has started that may lead to natural hazard in the near future. The National Commissioner of Icelandic Police (NCIP) has today met with the Prime Minister of Iceland, the Minister of Interior and government officials to consult on the issue. The NCIP also met with officials from the Ministry of Foreign Affairs, foreign embassies in Iceland and from key stakeholders in Iceland.

Mountain roads North of Vatnajökull, F88 (completely) and F910 (partly), have been closed for all traffic. That includes cars, bikes and hiking. A map of the area can be seen here.

http://www.vegagerdin.is/media/umferd-og-faerd/Halendi.gif

http://en.vedur.is/weather/aviation/volcanic-hazards/

https://twitter.com/hashtag/bardarbunga

rickdangerouss · 19-08-2014 02:28PM

New live web-cam has gone up today.

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

rickdangerouss · 19-08-2014 02:32PM

Summary of activity in Bárðarbunga

http://en.vedur.is/about-imo/news/nr/2942

maquiladora · 19-08-2014 02:41PM

Impressive looking horizontal movement on the GPS, but hardly any vertical movement. Maybe an indication that if an eruption does happen, it'll likely be a fissure event.

http://strokkur.raunvis.hi.is/~sigrun/DYNC_3mrap.png

maquiladora · 19-08-2014 10:10PM

The red area on the map north of Bárðarbunga is now off limits to the public. It's a large but very remote area. Nobody actually permanently lives there but tourists have been told to leave as a precaution.

Hooter23 · 19-08-2014 10:39PM

http://m.livescience.com/47414-iceland-volcano-eruption-threat-bardarbunga.html?cmpid=558185

The Iceland Volcano Thread

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