One year old

This blog is now officially one years old. People can read the blog posts from one year ago here, when this blog was starting.

A lot has happened in this one year. I have moved to Denmark and back to Iceland (for time being, going back to Denmark next year). Grímsfjall volcano did erupt in the largest eruption in at least 140 years. Katla volcano did have minor eruption. Hamarinn volcano did also have minor eruption and does not appear to be done yet. A lot more is going to happen in the next year. But that is a story that is going to be told later.

As for this blog. I am going to continue to do my best and continue to develop it to make it better and more informative then it is today. It is a progress and takes time. A lot more volcanoes are set to erupt in Iceland and I am going to do my best to write about them when the time comes.

No eruption starting in Hamarinn volcano

There seems to be a minor eruption starting in Hamarinn volcano (might be part of Bárðarbunga volcano). Given the current tremor signature on Skrokkalda SIL station.


The start of a harmonic tremor spike on Skrokkalda SIL station. Most likley from Hamarinn volcano. Copyright of this picture belongs to Icelandic Met Office.

For the moment I do not know if this is going to remain a small eruption or might evolve to larger eruption. That is going to come clear in next several hours. But for the moment this is starting and glacier flood is to be expected in several hours. There is no danger to humans or humans structures I think.

Update 1: Darn! False alarm!

This is how the tremor plot did look after one update.


The tremor spike just changed into regular earthquake so to speak. So this is nothing but false alarm. It happens. Copyright of this picture belongs to Iceland Met Office.

Blog post updated at 09:59 UTC on 27. September 2011.

Small eruption took place in Katla volcano in July 2011

According to the news on Rúv this evening it is now a opinion at Icelandic Met Office that a small eruption did take place in Katla volcano during the days 8 and 9 July 2011. This eruption was however larger then the eruption in Fimmvörðuháls in Eyjafjallajökull volcano last year (2010). But this is based on tremor data from around Katla volcano during this summer. But this is what Einar Kjartansson geologist at Iceland Met Office says in the news at Rúv this evening. Even if this small eruption did take place in Katla volcano it does not seems to have eased the pressure inside Katla volcano, so a large eruption in Katla volcano is still a possibility in the close future. Note: GVP has updated Katla volcano eruption status to the year 2011!

This conclusion was reached by checking out the cauldron that formed during this event. But they show a sign that they had a sudden melt taking place. But that melt can only happen of lava got into contact with the ice and fast melted it. This is also the reason why there was a 5 meters flood in Múlakvísl glacier river that did destroy the bride over it. But it is also a fact that the harmonic tremor in Katla volcano during this period was the same as that did happen during the eruption in Eyjafjallajökull volcano. The only difference was that it it was stronger from Katla volcano then in Eyjafjallajökull volcano it seems (at least from what I can see from the data). Even if it lasted for a shorter time then in Eyjafjallajökull volcano.


The tremor on Slysaalda SIL station on 9 July 2011 at 00:36 UTC. Copyright of this picture belongs to Iceland Met Office.


Alftagrof SIL station on 9 July 2011 at 00:36 UTC. Copyright of this picture belongs to Iceland Met Office.


The area that was active and had a eruption on 8 and 9 July 2011. Copyright of this picture belongs to Iceland Met Office.

Even with this small eruption it is clear that Katla volcano is not done with its eruptions. Since the large one is not yet over. When that happens is a good question and nobody has a answer too at the moment.

Note: This is also what did happen in Hamarinn volcano the week after. But I also think that volcano did have a minor eruption in July 2011. As the signatures are the same from what I can gather. So that makes three eruptions in Iceland for the year 2011 if confirmed later on.

Icelandic News with this. Use Google translate with care on it. Since it does not understand.

Allt bendir til Kötlugoss (Rúv.is, Icelandic, Picture)
Segir Kötlu hafa gosið í sumar (DV.is, Icelandic, Picture)
Lítið eldgos í Kötlu í sumar (mbl.is, Icelandic)

Hengill volcano man made earthquake swarm

The man made earthquake swarm in Hengill volcano that happened today seems to have subsided, as it is most likely that Orkuveita Reykjavíkur has stopped pumping down water into the new drill hole that they where using today.

Over 400 earthquakes have been recorded in this man made swarm. I am not sure on the depth on most of the earthquakes. But it is in the range of 1 to 10 km from what I can tell. The largest earthquake in this earthquake swarm was ML3.4 in size, it had the depth of 3.9 km.


The man made earthquake swarm in Hengill volcano. Copyright of this image belongs to Icelandic Met Office.

I am going to post earthquake traces on Sunday or Monday. I am currently not at “home” (where my main computers are located), as I am taking this weekend off (if nothing large happens this weekend).


Two of the earthquakes from the man made earthquake swarm in Hengill volcano. This picture is released under Creative Common Licence. See licence web page for more details.

It is hard to know what happens as Orkuveita Reykjavíkur continues to pump down water into Hengill volcano. All that can be done is too wait and see what happens.

Blog post updated at 21:48 UTC on 26. September 2011.

Earthquakes in Katla volcano, strong sulphur smell in Múlakvísl river before the earthquake happened

This morning there has been some earthquake activity in Katla volcano. But it has also been reported in the news this morning that a really strong sulphur smell was found around 06:00 UTC on nearby farm to Múlakvísl river this morning. But this was before the earthquake did happen. I am not sure if this sulphur smell continues to be felt in the area close to Katla volcano. No changes in water hight has been detected in Múlakvísl glacier river.

The ML2.6 earthquake in Katla volcano was on 2.3 km depth. This was mostly a dike intrusion into the bedrock of the Katla volcano caldera.


The earthquake swarm this morning in Katla volcano. Copyright of this picture belongs to Iceland Met Office.


High resolution of the Katla volcano earthquake this morning. Along with correct depth and size. This picture is released under Creative Commons licence. See Licence page for more details.

As before. This is just a wait and see what is going to happen in Katla volcano as before.

Icelandic News of the sulphur smell in Múlakvísl glacier river.

Brennisteinslykt fannst við Múlakvísl í morgun (Vísir.is, Icelandic)
Brennisteinslykt við Múlakvísl (mbl.is, Icelandic)

Update 1: According the news on Rúv this activity suggests that hydrothermal activity is continuing to increase in Katla volcano caldera. But the news also says that this activity is something like that did happen from the year 2002 to the year 2004, when hydrothermal activity did increase before it started to get lower again. It is also pointed out my Matthew Roberts that Múlakvísl glacier river is sensitive to changes in Mýrdalsjökull glacier and small floods can happen without any warning in it due to increased hydrothermal activity.

Rúv news in Icelandic about this.

Bendir til aukinnar jarðhitavirkni (Rúv.is, Icelandic)

Blog post updated at 13:07 UTC, 23 September 2011.

A ML2.7 earthquake in Skagafjörður rift zone (mostly extinct one)

This earthquake is a odd one. But it is rare that earthquakes happens in this are of Iceland. But it is not unheard of. As there have even been small earthquake swarm in this area few years ago (2 or 3 years ago I think). This area is part of Skagafjörður rift zone (pdf file) (also known as Skagafjörður Volcanic zone), but that is believed to be a failed rift zone that formed in about 1.7 million years ago. Just around when current eastern rift zone started to form in Iceland.


The ML2.7 earthquake is the left corner of this image, a bit far away from TFZ earthquake zone. Copyright of this image belongs to Icelandic Met Office.


The ML2.7 earthquake seen from Sauðárkrókur geophone that I am going to run until December 2011. Sadly, no live gif image of it due to network issues. Please note that this geophone is in a noisy location. This picture is released under Creative Commons Licence. See licence web page for more details.


The ML2.7 seen on Hvammstangi geophone. Sadly, no live gif image of it due to network issues. This picture is released under Creative Commons Licence. See licence web page for more details.

I do not know if there are going to be more earthquakes in this area. But it seems that this earthquake has happened in a area with known faults from post-glacial times (they are on my geological map of Iceland). So for now all that can be done is to wait and see what happens next this this area. But I am not expecting anything special in terms of more earthquake activity. There are no active volcanoes in this area.

New earthquake swarm in Katla volcano

After few quiet days in Katla volcano. It seems that new earthquake swarm is about to start in it. But this earthquake swarm did start with a ML2.8 earthquake (automatic size) at 10:55 UTC. This earthquake have been followed by smaller earthquakes. So far there have not been many earthquakes in this earthquake swarm. But the largest earthquake took place on what I think is the fissure where the eruption in the year 1918 took place.


The earthquake swarm can be seen here. Copyright of this picture belongs to Iceland Met Office.

The largest earthquake clearly has magma signature in my opinion. As it can be seen on my geophone recording of this earthquake.


The ML2.8 earthquake. This picture is released under Creative Commons Licence. Please see licence web page for more details.


High resolution of the Katla volcano ML2.8 earthquake. The bump later on this earthquake trace is the second earthquake that only had the size ML0.9 according to the automatic size estimate. This picture is released under Creative Commons Licence. Please see licence web page for more details.

There seems to have been some type of tremor event on Goðabunga SIL station just before the earthquake. I am not sure what event this was. But it does not appear on other SIL stations around Katla volcano.


Goðabunga SIL station. Copyright of this picture belongs to Iceland Met Office.

For the moment the only thing that can be done is to wait and see what happens in Katla volcano.

Back to Denmark in the summer of the year 2012 (off-topic blog post)

This is a off-topic post. So feel free with off-topics thing in the comments.

One of the aspect about writing about volcanoes is that it depends on how you feel in the place that you write in. But for me as a writer that is a important aspect of my writing. I love writing about volcanoes and earthquakes, the monitoring data among other other things all related to volcanoes and earthquakes. But that is also important for me to live in the correct place so I can make my best work. This is not just about writing about volcanoes, but this is also important for my other book work that I am planning to write in the future.

The thing is however that place for me is not Iceland and never has been. It is a collection of many social factors I am not going to go into here in details, but the biggest reason is that in Icelandic culture writer are not appreciated as they should be on the public scene (and some types of work are not even put forward unless you got right connection). But I find that living in Iceland affects my work and even starts a writing block with me. For that reason it is important for me to do my work elsewhere then in Iceland. From what I gather my writing appears to work well in Denmark. It might also do so in other Europe countries. But so far my feeling for Denmark is good and for the moment I am going to stick with it.

For that reason I am moving back to Denmark in the year 2012. The exact date is not yet clear. But I have decided that I am hopefully going to move in June. At the moment that might change. But I find this to be a good target, as then I have been one year from Denmark since I did move first time around to Denmark in February in the year 2011 and back to Iceland in June.

I am plan moving to a town named Ringsted in Denmark. It is closer to Copenhagen then Sønderborg where I used to live. But trip with a train is about 35 min, rather then 3 hours and around 30 mins from Sønderborg. Around the time that I move. I plan to have for all the costs that I need to pay. Thanks to a computer work that I got. I should already have been covered the transport cost already (I have not yet been paid, so this is in the remains to be seen stage). The only thing that remains is the deposit for the apartment plus one expensive month without rental benefits in Denmark (since I am low income).

Status update to my blogs

In light of all this. I have decided that I am going to upgrade the status of my blogs to work, rather then just plain hobby. It is going into to effect from this blog post here in part. But it is going to full effect from 1. January 2012. How this is going to develop is a process that I am going work on all the time that I am going to write. But the average work on a blog post that I write here is about 1 hour and 35 min. But longer blog post can take up to 8 hours to write from start to finish.

This change suggests that I am going to have some income from this. That would be welcomed. But for the moment I do not have a lot of income from this work. Most of the income is from donations and advertisements on this web site. For the moment, that is not enough for the whole month. But with the social welfare it helps. But that also has its drawbacks for the long term. As income lowers my social welfare if it goes above certain amount. Now, that is all good with me if that income would be constant. For the moment, that is not the case. So how this is going to turn out is a good question. But I hope for the best when the time comes. For the moment however, my income from this is low and I expect it is going to remain so for the months ahead.

As for my plan on paying back my debt with the bank. It is going rather good. But it is going to go better next month, as I am only going to school this autumn. So I am hoping to be debt free before the new year comes. But if that happens remains to be seen.

On-topic snapshot

It is all quiet in Iceland. While that remains. I am writing this blog post to use the quiet time for something useful.

Thanks everyone for the support! 🙂

More new tremor spikes in Katla volcano

Yesterday and today there where two tremor spikes in Katla volcano. This follows a higher then normal background noise that I cannot directly trace only to wind as I did first think. What is going on is not clear, but it remains a bit of events just before the July 1999 minor eruption (suspected). But it has been speculated by scientist that event was related to inflation event deep inside Katla volcano systems. But the actual fact remains unclear. More information on the event in July 1999 can be read here (in Icelandic).

Pictures from the year 1999 of the harmonic tremor event in July that year.


The harmonic tremor spikes in July 1999 in Katla volcano. Copyright of this picture belongs to Iceland Met Office.

There was also special note on this tremor chart here from skh SIL station (now gone). But in the year 1999 this signal was most clear on Snæbýli SIL (snb). But today this signal appears to be most clear on Goðabunga SIL station and Eystri-Skógar SIL (esk) SIL station. I do not know what the difference is. But it clearly is something.


The harmonic tremor spikes in July 1999 in Katla volcano. Copyright of this picture belongs to Iceland Met Office.


The harmonic tremor spikes in July 1999 in Katla volcano. Copyright of this picture belongs to Iceland Met Office.

Please note that all earthquakes have been cleared from this old SIL tremor plots.

Current day activity in Katla volcano looks like this on the SIL stations where it is most clearly seen.


Odd spikes can be seen here on this tremor plot. I do not know what they are. Copyright of this picture belongs to Iceland Met Office.


Hard to see spikes can be seen on Goðabunga SIL station. They are the same as from Eystri-Skógar SIL station. Copyright of this picture belongs to Iceland Met Office.


Same as above. But stronger then on Goðabunga SIL station. Copyright of this picture belongs to Iceland Met Office.

It is hard to know for sure what this signals means. But I am sure that this signals are going to mean something someday. But when is hard to know.

Earthquake swarm in Öræfajökull volcano sparks interest

The earthquake swarm in Öræfajökull volcano three weeks ago has sparked interest among volcanologist and geologists in Iceland. As the last earthquake swarm in Öræfajökull volcano was only the third earthquake swarm to take place in the last 20 years. But this was a subject of a news from Stöð 2 (Channel 2) this evening.

While a eruption is not expected any time soon from Öræfajökull volcano. It is clear that Öræfajökull volcano has started the long (?) path to a eruption (question mark, as we all know sometimes volcanoes just skip the long waiting part and go strait to the eruption phase as a surprise to everyone).

News about this from Stöð 2 (Channel 2).

Skjálftahrina í toppgíg Öræfajökuls (Vísir.is, Icelandic, Video in Icelandic, News drama)