Category: Earthquakes

Posted on

Bárðarbunga volcano update Friday 21-November-2014

This is going to be a short update.

There are no major changes in the eruption in Holuhraun. From the looks on the web cameras it appears that wall of the crater has possibly collapsed, I don’t have it confirmed. Other possibility is that the eruption in Holuhraun has increased for the time being. Some lava strokes can be spotted on the north edge of the crater at the moment. The lava flow seems to have changed direction at the moment, the size of the lava field is now close to 72 km².

141121_2320
Earthquakes in Bárðarbunga volcano for the past 48 hours. Copyright of this image belongs to Icelandic Met Office.

For the past 48 hours there have been 63 earthquakes with magnitude that are larger than 3,0 in Bárðarbunga volcano. In that same time earthquake activity also appears to be increasing along the dyke. There have not been any change in GPS data, suggesting that flow if magma into the dyke is about the same as before. No other changes have been reported at the moment. The eruption is now clearly visible on Míla Bárðarbunga web cameras (Camera 1, Camera 2).

Other things: Based on my latest calculations it is going to take me 1,6 year (best estimate at the moment) to get out the debt issue that I am now in. Both paying down the overdraft with my Icelandic bank, the tax debt with the Danish state (a large pile of money for me) and what I am going to owe mom and dad due the move back to Iceland. Uggghhhh. Sometimes I hate money.

Article updated at 00:55 UTC.

Posted on

Bárðarbunga volcano update Wednesday 19-November-2014

This is going to be a short update.

There have not been any major changes reported in the eruption in Holuhraun. It has however been reported that amount of SO2 appears to be increasing in the eruption. This might mean that the magma is getting even more primitive than before and contains more gas in it then before. I have not heard any new numbers regarding the size of the lava field, it is however now larger then 72 – 74 square kilometres. I am not sure what number is correct at currently. New image of the crater show no change in outflow of lava in it.

141119_2030
Earthquake activity in Bárðarbunga volcano for the past 48 hours. Copyright of this image belongs to Icelandic Met Office.

Earthquake activity in Bárðarbunga volcano continues as it has been doing for the past three months. No earthquake with magnitude above 5,0 has happened since Sunday, that might change at any time without warning since such earthquakes happens at regular intervals. The rate of earthquakes with magnitude above 5,0 has dropped for the moment, I am not sure if it is going to increase again. That might happen and it might not happen again.

Other things

Minor stop in updates of Bárðarbunga volcano activity is going to happen between 2-December until 15-December (best estimate). The reason for this is that during this time I am going to be moving back to Iceland and I can’t work in that period while I am moving. I am going to clear comments that get stuck in moderation soon as possible in that time.

The dates of no updates are as follows.

3-December. Update might happen this date, but I am not sure yet if I have time to write it.
5-December. No update.
8-December. No update.
10-December. No update.
12-December. No update expected.
15-December. No update expected.
17-December. If I have my computer by this date I will post update.
19-December. ???

I am going to post update schedule for Christmas at later time.

Next week I am going to update my bank information for those who donate directly to me for my work here. The banking information can be found here. I am going to post information about changes to Paypal in late December-2014 or early January-2015.

Comments

As many have noted I have removed capchata word test. The reason for that was the plug-in in question did not work any more after a update. This also means spam bots have easier access to the comment section if this website. Please send me an email if you see any spam. I will try to keep an eye out for such commend and remove them soon as possible as they appear.

Posted on

Bárðarbunga volcano update Monday 17-November-2014

There has not been any major change in the eruption in Holuhraun. Latest reports are that the lava field is now 74 square kilometres in size. While the eruption is smaller than it was when it started, it is still considered a large eruption based on volume of lava that is now erupting. The crater rim was according to last news around 60 meters high, it might have lowered from last report that I did hear that stated it was around 100 meters high. Since the rim is made out of loose material it is unstable and might suffer from collapses at regular time intervals. SO2 pollution continues to be a big issue in Iceland depending on wind. Once I am back in Iceland I am going to start posting pictures of it for those days it is going to be in the part of Iceland where I am going to be living (north-west Iceland).

bardarbunga.mila.webcamera.svd.17.11.2014
The eruption site today (17-November-2014) as it appeared on Míla web camera at 14:32 UTC. Copyright of this image belongs to Míla.

141117_1820
Earthquake activity in Bárðarbunga volcano for the last 48 hours. Copyright of this image belongs to Icelandic Met Office.

Earthquake activity remains the same as before in Bárðarbunga volcano. Largest earthquake on Sunday (16-November-2014) had the magnitude of 5,4. Earthquake activity is heavy at times in Bárðarbunga volcano, after a large earthquake takes place (above magnitude 5,0) earthquake activity drops for few hours in Bárðarbunga volcano, this appears to be normal. The rate of subsidence is about the same, it has slowed down in the centre of the caldera according to the news from today.

Rúv News – New video of the eruption in Holuhraun

Holuhraun eruption – fresh video (Rúv.is, English)

Other: Please note that I have removed mobile device support from this website. The plug-in was old and the newer versions did not work for older mobile devices. Due the old age of this plug-in it was a security risk. So I did remove it for that reason.

Posted on

Bárðarbunga volcano update Friday 14-November-2014

This is not going to be a long update for Bárðarbunga volcano.

The eruption in Holuhraun continues with little or no change since Wednesday. The eruption continues at the same phase as before. Visibility due to weather has prevented good observation of the eruption. Last observation of the lava field showed that is now around 74 square kilometres in size. The crater rim is now around 100 meters high at highest peaks. Bad weather is going to last until tomorrow in this part of Iceland.

141114_1815
Earthquake activity in Bárðarbunga volcano for the past 48 hours. Copyright of this image belongs to Icelandic Met Office.

Largest earthquake in the last 48 hours had the magnitude of 5,4. Other than that earthquake activity is on the same level as before, there doesn’t seems to be a any major change taking place in the activity. Subsidence in the caldera continues around the same rate as before, there might have been a minor slowdown of subsidence, but I don’t know if that has changed again. Other than this I don’t have any other news to report at the moment.

Posted on

Bárðarbunga volcano update Wednesday 12-November-2014

Eruption activity continued in Holuhraun at the same rate as on Monday (10-November-2014) and yesterday (Tuesday 11-November-2014). While bad weather has making observation of the eruption in Holuhraun difficult and close to impossible there are no signs of the eruption ending any time soon. A lava lake has now formed that is around 400 meters long and 100 meters wide. This is the first lava lake in Iceland in a long time. I don’t know when last lava lake existed in Iceland, but that was a while ago.

141112_2255
Earthquake activity in Bárðarbunga volcano for the last 48 hours. Copyright of this image belongs to Icelandic Met Office.

Earthquake activity in Bárðarbunga volcano continues as it has been doing for the past two and half months. This means that the caldera continues to subside at unchanged rate. I do not know how much the area has grown that is now subsiding, I think there is limited information on that due to limited access to this area in the winter time. At the moment nothing seems to be changing and GPS data is supporting that view of mine. Comments on this blog and blogs posts by people how have gone to the eruption site in recent days say that new fractures are appearing south of current eruption crater. This means that rifting is continuing, this also means that new eruption south of current crater might start at any time without warning. Since magma is at shallow depth at this location, with depth being only 1 – 2 km at most, it is possible that it might even be at shallower depth closest to the eruption crater (but has not erupted yet).

Tungafellsjökull volcano

There has been minor increase in earthquake activity in Tungafellsjökull volcano. At the moment this looks just like a tectonic stresses are adjusting to all the changes in Bárðarbunga volcano. Earthquake activity in Tungafellsjökull volcano might increase in next few days or weeks. I don’t expect any eruption to take place at this point in time.

Bad weather warning

For the next two days there is going to be bad weather in Iceland. This means that detection of earthquakes is going to be limited in Holuhraun and around Bárðarbunga volcano. This means that only largest of earthquakes are going to be properly detected. Visibility to the eruption site on web-cameras is not going to be awful to none due to the snowstorm that I expect might follow this storm in the highland (it might rain, but I am not sure on that detail yet). It is storm season in Iceland so expect a lot of storms all winter.

Posted on

What is going on in Bárðarbunga volcano

This is not a status update article. For Monday 10-November-2014 status update, please check last article. This is not going to be a long article since I have a long way to go in order to properly analyse all the data that has resulted from the eruption in Bárðarbunga volcano.

Activity in Bárðarbunga volcano before 16-August-2014

Activity in Bárðarbunga volcano before 16-August-2014 was a pattern of regular earthquake swarms and dyke intrusions. That was considered normal behaviour in Bárðarbunga volcano. It has to be considered if this where in fact the long term signs that eruption was going to happen soon. Earthquake swarms where also common in Dyngjuháls area, often with earthquakes that had magnitude 3,0 and stronger.

Nineteen weeks before 16-August-2014

It seems that some nineteen weeks before 16-August-2014 a critical point was reached in Bárðarbunga volcano. At that point it seems that pressure had started to rise inside the volcano. This resulted in change in earthquake activity that lasted until 16-August-2014 when magma started to break outside the magma chamber and making its way to the surface. This change in activity in Bárðarbunga volcano appears clearly on Week 15 and Week 16 and onwards.

Current changes in Bárðarbunga volcano

Currently Bárðarbunga volcano is subsiding and at the moment it is not going to start a caldera collapse if it continues in the same way as it has been doing for the past two and half month. Far as I can tell, it seem that magma is now being drained from two dykes (or sill) in Bárðarbunga volcano, while the dyke exit point is rather deep, with depth around 5 – 8 km (best estimate and it might be wrong). This appears to be drainage from the top, magma is going down the mountain (far as I can tell and that might be wrong too) and into the dyke. Rather than just rising from depth and going into the dyke, but that is also happening at the moment. How much magma is at work here I don’t know, it is however clear that there is enough magma in Bárðarbunga volcano to continue the eruption in Holuhraun for many more months. The drainage of the sill(s) explains the earthquake activity in Bárðarbunga volcano, it also means this earthquake activity is going to continue for many more months. It also means that larger earthquakes that have higher magnitude than 5,7 can happen, even if they have not done so yet.

The rifting activity

It seems that the eruption in Bárðarbunga volcano has started a rifting in Eastern volcanic zone in Iceland. That activity is going to continue for decades at least. This rifting means that more fissure eruptions are going to take place, both under Vatnajökull glacier and outside it (like Holuhraun eruption).

What is going to happen next?

While there is no way to be certain what is going to happen next in Bárðarbunga volcano since its eruption history is mostly unknown and has not been observed with instruments before. As the time passes the image is going to get clearer. For the moment Icelandic emergency authorities are preparing for an eruption under Vatnajökull glacier. Since an rifting is going to start south of Bárðarbunga volcano one day, when that might happen is not clear, since the situation south of Bárðarbunga volcano is more complex and has factors at work. One of those factors is Hamarinn (loki-fögrufjöll) volcano. It is clear that Bárðarbunga might or is likely to trigger a eruption in that volcano without warning. When that might happen is not known and that is always the case with volcanoes and possible eruptions.

New activity update for Bárðarbunga volcano is going to be written tomorrow (12-November-2014).

Posted on

Bárðarbunga volcano update Monday 10-November-2014

No major change took place in the eruption in Holuhraun during the weekend. The lava field is now around 70 square kilometres wide and it keeps growing each day. I don’t know the total volume so far, since that depends on the thickness of the lava. Last calculations that I know of estimated it to be around 1,0 km³, it is save to assume that volume is now greater since the last estimate that I know of is at least one month old by now.

141110_2055
The earthquake activity in Bárðarbunga volcano. Copyright of this image belongs to Icelandic Met Office.

Largest earthquake this weekend had the magnitude of 5,2. Other earthquakes where smaller, but many magnitude 3,0 and larger earthquakes did happen as usual in Bárðarbunga volcano. The crust in Bárðarbunga volcano is now heavily fractured, this allows heat from the volcano easier way to the surface. This also means new hot springs are going to open up and older ones are going get more active. There is no major change in Bárðarbunga volcano eruption at the moment, as has been the case for most part of past two months.

Article on what is happening in Bárðarbunga volcano

I am working on a article (in my head at the moment) on what is happening inside Bárðarbunga volcano. It is not ready yet, I do hope to have it ready tomorrow if I can process all the data for the article, in order to properly figure out my self what is going on in Bárðarbunga volcano.

My geophone network

I run a geophone network of just two geophones in Iceland at the moment. Once I get an apartment the total number of working geophones is going to be three. I have decided that once I move from Iceland to Azores Islands[1] it is not going to be workable to keep the network running due the technical problems doing so. I am not going to stop recording earthquakes, I am just going to do so in Azores Islands. At the moment I also have four year backlog of earthquakes that I have to properly add time and location data to. That is a lot of earthquakes over this period, since large events have happened and Bárðarbunga alone added up to 2000 earthquakes to my earthquake database in August and now I add around 10 – 20 earthquakes from Bárðarbunga volcano each day (this is just average). The geophone network as it now stands is going to be running for the next 5 – 10 years while I live in Iceland, after that I am going to relocate it to Flores Island when I move there[2]. At the moment I don’t know for sure when that is going to happen, all I know now is that it is going to happen.

1: I am currently living in Denmark. I move next month to Iceland.
2: I plan up to ten years ahead so that I know what I need to do and know before I do it.

Posted on

Bárðarbunga volcano update Friday 07-November-2014

Bad weather in Iceland has been making monitoring of Bárðarbunga volcano difficult at best. Information for that reason is a bit limited at the moment.

Earthquake activity continues in Bárðarbunga volcano as it has been doing for the past two months. Largest earthquake this morning had the magnitude of 5,4 and happened at 07:11 UTC. Other earthquakes have been smaller, due to bad weather in all of Iceland fewer earthquakes have been recorded today and yesterday (06-November-2014).

141107_2025
Earthquake activity in Bárðarbunga volcano for the past 48 hours. Copyright of this image belongs to Icelandic Met Office.

GPS measurement are showing that subsidence in Bárðarbunga volcano continues at the same rate as before. The rate of subsidence is the same, the change however is that larger area of Bárðarbunga volcano has now started to drop, suggesting that current eruption in Holuhraun has started to drain magma from other dykes in Bárðarbunga volcano or sill in it. The details of this can be found here in latest report from Icelandic Met Office on current activity in Bárðarbunga volcano.

No change has taken place in Holuhraun, the eruption continues with same rate as before far as I know. Bad weather has blocked the web cameras and I don’t think there is anyone close the eruption site due the weather. Far as I know there is nothing else in the news about the activity in Bárðarbunga volcano.

Donations: Please remember to donate to support my work or by using Amazon to support my work by shopping with them. Thanks for the support. 🙂

Posted on

Bárðarbunga volcano update for Wednesday 05-November-2014

This is current status in Bárðarbunga volcano for Wednesday 05-November-2014.

There has not been any major change in the eruption in Holuhraun since Monday 03-November-2014. The eruption continues around the same phase as before. Earthquake activity continues to be strong as it has been for the past two months. With several magnitude 3 – 4,9 earthquakes happening every day, the amount of earthquakes is different between days.

141105_2105
Earthquake activity in Bárðarbunga volcano for the past 48 hours. Copyright of this image belongs to Icelandic Met Office.

It continues to be extremely dangerous going to the eruption site as two police men found out yesterday. They hit a pocket of dangerous gases that had removed most of the oxygen in the area where they had located them self, at the edge of the lava field and where some two to three kilometres away from main erupting crater. They almost passed out due to lack of oxygen and they where using gas masks according to the news on Rúv about this insistent.

Drop of the caldera in Bárðarbunga volcano continues at the same rate as before, the most drop is now around 44 meters in the caldera. Cauldrons in the glacier above Bárðarbunga volcano continue to getting deeper, the depth has increased around 5 – 8 meters in the past 11 days according to recent measurements. The amount of melt according to calculations is around 2 cubic meters per second (m³/sec). This is equal to energy release for few hundreds megawatts according to University of Iceland. It is now difficult getting to the eruption site due to winter in the area, travel by car is now at minimum seven hours the other way in best conditions.

Other than this I don’t think there is anything else new about Bárðarbunga volcano eruption at the moment.

Icelandic News

Færð gerir vísindamönnum erfitt fyrir (Rúv.is)
Lögreglumenn urðu fyrir súrefnisskorti (Rúv.is)

Posted on

Minor earthquake swarm on the Reykjanes ridge yesterday (04-November-2014)

Yesterday (04-November-2014) an minor earthquake swarm took place on the Reykjanes ridge. Around four earthquakes where recorded.

141105_2040
The earthquake swarm on the Reykjanes ridge on 04-November-2014. Copyright of this image belongs to Icelandic Met Office.

This is the same location that had a minor earthquakes swarm on 27-October-2014 that I wrote about here. Largest earthquake had the magnitude of 3,3, other earthquakes had smaller magnitudes.