Glacier flood confirmed from Skaftárkatlar cauldron

It was confirmed today (02-August-2018) that glacier flood has started from Skaftárkatlar cauldron. According to the news the GPS monitoring station close the cauldrons started to drop around midnight. Around same time harmonic tremor started to change on nearby SIL stations.


Harmonic tremor on nearby SIL station due to glacier flood. Copyright of this image belongs to Icelandic Met Office.

It can take up to a week for the glacier flood to finish, but that depends on the amount of water in the cauldron that is emptying it self. According to the news the eastern Skaftákatlar cauldron is now emptying it self. It last did so three years ago.

Donations

Please remember to support my work with donations. It help me buying food and other stuff I need to write articles here. Thanks for the support. 🙂

Minor earthquake swarm in Torfajökull volcano

This morning (on 20-April-2018) an earthquake swarm took place in Torfajökull volcano. This was a minor earthquake swarm and largest magnitude was 2,4. All other earthquakes where smaller in magnitude.


The earthquake activity in Torfajökull volcano. Copyright of this image belongs to Icelandic Met Office.

There isn’t a lot happening in Katla volcano on this image. It is all quiet at the moment. In general it is also really quiet in Iceland at this moment.

Donations

Please remember to support my work even if it is quiet at the moment in Iceland. It is impossible to know when that changes. I also have the bill problem for May ongoing and that is explained here. Thanks for the support. 🙂

Minor increase in conductivity in Múlakvísl glacier river from Mýrdalsjökull glacier (Katla volcano)

Over the past few days there has been a minor increase in conductivity in Múlakvísl glacier river that comes from Mýrdalsjökull glacier. This is the glacier that is on top of Katla volcano. There is no unusual earthquake activity taking place in Katla volcano at the moment.

140908_1345
There is little activity in Katla volcano today. Copyright of this image belongs to Icelandic Met Office.

The reason why conductivity is higher in Múlakvíl glacier river over the past few days is that there are cauldrons in the glacier. Those cauldrons are created by hydrothermal areas in Katla volcano caldera. They empty them self on regularly during the year. There is no risk of eruption in Katla volcano at the moment. Activity is well below normal background activity fro Katla volcano.

Minor earthquake swarm in Kverkfjöll volcano

Today (14-May-2014) a minor earthquake swarm took place in Kverkfjöll volcano. Earthquake activity is not common in Kverkfjöll volcano, but it does happen once in a while. This does not mean the volcano is about to erupt, this was just an earthquake swarm taking place. No earthquake reached the magnitude 2,0 in this earthquake swarm.

140514_1935
The earthquake swarm in Kverkfjöll volcano (red dots at north-east part of Vatnajökull glacier). Copyright of this image belongs to Icelandic Meteorological Office.

There are no clues to why this earthquake swarm took place. This might have been a magma injection in the volcano, or this might just have been a change in the highly active hydrothermal areas in the volcano. There was no change at all in harmonic tremors in the volcano during this earthquake swarm. Kverkfjöll web-camera can be found here, it has however not updated since 1-May-2014. I am not sure if this means anything for Kverkfjöll volcano, as such I am just waiting too see what happens next in Kverkfjöll volcano.

Donations: Please remember to donate to support my work. I have less then 3,30€ (25 DKK) to of survive the remaining of this month. Thanks for the support.

Waiting for the eastern Skaftá glacier cauldron

The glacier flood in Skaftá glacier river is almost over or is over at present time (21-January-2014). This however does not mean that everything is over. Since there are two cauldrons in the Vatnajökull glacier in the Hamarinn volcano it means there is more water stored there now then has now flooded from the glacier. It is now clear that the eastern Skaftá glacier cauldron in Vatnajökull glacier has not emptied it self in this flood from the western Skaftá glacier cauldron.

skaftarkatlar.svd.19-Januar-2014
The eastern (Eystri) and western (Vestari) cauldrons in Vatnajökull glacier. Copyright of this image belongs to Icelandic Meteorological Office.

When the eastern glacier cauldron empties it self they are expecting a lot larger glacier flood to take place. Since there is a lot more water holding up in the eastern Skaftá glacier cauldron. It is also longer since it flooded and emptied it self. Last glacier flood from the eastern Skaftá glacier cauldron was in the year 2010. More information on how this flood system works can be found here (in Icelandic) on Icelandic university website geology department.

Glacier flood started in Skaftár glacier river

It was announced today (19-January-2014) that glacier flood has started in Skaftá glacier river (or connected rivers) from Skjaftár cauldrons in Vatnajökull glacier. Currently the water is discharging from Skaftár cauldrons at the rate of 370 m3/s according to Icelandic Meteorological Office. So far no changes have taken place in harmonic tremors close to Hamarinn volcano where the Skaftár cauldrons lie within Vatnajökull glacier.

Smell of hydrogen sulphide has been detected by people living close the rivers that the glacier flood is discharging into. There is a considerable risk of poisoning if people get to close the rivers that hold the flood water. It is currently believed that it is the western Skaftár cauldron that is now emptying, that one did empty it self back the in the year 2012. That is however not going to be confirmed until the area can be checked by flying over it and see what is taking place at this location. That might take few days since it is dependent on weather when it is possible to do such flight.

skaftarkatlar.svd.19-Januar-2014
Location of Skaftár cauldrons in Vatnajökull glacier. Copyright of this image belongs to Icelandic Meteorological Office. Picture is taken from Icelandic Meteorological Office Facebook page.

skaftarkaltar.rennsli.svd.19-Januar-2014
The current flood in Skaftár glacier river. The water monitoring stations around Vatnajökull glacier. Red stations are monitored for floods, black ones are normal flow stations. Copyright of this image belongs to Icelandic Meteorological Office. Picture is taken from Icelandic Meteorological Office Facebook page.

Uncertainty level has been declared in the area do to this glacier flood by the Civil Protection and Emergency Management in Iceland. It is advised against people travelling in the area while this glacier flood takes place. On Vatnajökull glacier there is also a risk of new cracks forming in the glacier was the cauldron is emptied of water in the next few days. This cracks are dangerous and really deep and wide on the top, but get narrower closer to the end of them. It is possible to monitor the glacier flood here on Icelandic Meteorological Office website.

Icelandic news about this. Some English text is in some of the news. It is possible to use Google Translate on this, but result can be unreliable.

Skaftárhlaup er mjög líklega hafið (Rúv.is, maps, English text)
Skaftárhlaup hafið en það vex óvenju hægt (Rúv.is, Icelandic, maps)
Óvissustig vegna Skaftárhlaups (Rúv.is, Icelandic, maps)

Skaftárhlaup er hafið (mbl.is, English text)
Óvissustig vegna Skaftárhlaups (mbl.is, Icelandic)
Fundað um næstu skref (mbl.is, Icelandic)

Post updated at 20:34 UTC on 19-January-2014.

Increased conductivity continues in Múlakvísl glacier river (Katla volcano)

Last week I wrote about increased conductivity in Múlakvísl glacier river that comes from Mýrdalsjökull glacier (Katla volcano). This trend has continued into second week with the conductivity. The conductivity in Múlakvísl is now on the range of ~327 to ~360 µS/cm. There has also been a slight increase in water levels following this change in Múlakvísl glacier river. Normal value for this time of year according to Icelandic Meteorological Office is ~180 µS/cm in Múlakvísl glacier river. Since 31-December-2013 the conductivity in Múlakvísl glacier river has always been over 220 µS/cm.

rafleidni.mulakvisl.januar.1-15.2014
Conductivity in Múlakvísl glacier river. Top: conductivity. Middle: Harmonic tremor. Bottom: Windspeed. Copyright of this image belongs to Icelandic Meteorological Office.

mulakvisl_animated
Animated image from Icelandic Meteorological Office showing changes in Múlakvísl glacier river during this time period. Original image can be found here. Copyright of this image belongs to Icelandic Meteorological Office.

No harmonic tremors or earthquakes have been detected (besides normal activity) following this changes. What is taking place is that a cauldron in Mýrdalsjökull glacier is now leaking melt water that has been built up due to hydrothermal (hot springs) activity under the glacier. So far it does not appear that current changes in Múlakvísl glacier river mean anything at all. If that is going to change is impossible to know at this point.

Icelandic News about this

Rafleiðni há en enginn órói mælist (mbl.is)

Donation notice: Please remember to support me so that I can continue to report on volcano and earthquake activity in Iceland.

Post updated at 19:09 UTC on 15-January-2014.
Post updated at 20:49 UTC on 15-January-2014.

Increased conductivity in Múlakvísl glacier river

Donation notice: If you like my work. Please consider donating to help me continue my work. This site is now advertisement free as explained here. Donation button is going to be added soon. If you want to donate regularly, please use the Paypal button on the sidebar to do so. Information on how to donate to me with other ways can be found here. Thanks!

It has been reported in Icelandic media today that there is an increased conductivity in Múlakvísl glacier river that comes from Mýdalsjökull glacier. This increased conductivity started in Múlakvísl on 31-December-2013 and has lasted until today (it might last for few days longer).

Mýrdalsjökull glacier is on top of Katla volcano. There are no signs of increased activity following this and according to the news this is most likely a cauldron under the glacier empting it self of water melted by hydrothermal area under the glacier. So far there is no risk to this increased conductivity in Múlakvísl glacier river.

There are no signs of glacier flood is about to take place, at least it is not going to a large one if it happens. That is the current idea at the moment anyway. No earthquake activity or tremor activity has taken place following this changes in Múlakvísl glacier river.

Icelandic News about this

Aukin rafleiðni en ekki útlit fyrir hlaup (Rúv.is)
Fylgjast vel með Múlakvísl (mbl.is)
Vaxandi rafleiðni í Múlakvísl (Vísir.is)

Source of the glacier flood in Hofsjökull volcano found

In August-2013 there was an glacier flood from Hofsjökull volcano, this glacier flood was minor and did not cause any damage. The source of this glacier flood has now been found according to Icelandic Meteorological Office. A new glacier cauldron has been found in Hofsjökull glacier, where none was before. The cauldron is around 700 meters long and about 30 – 50 meters deep. The glacier is cracked a lot around the cauldron and it’s dangerous to travel to this area because of that. The hight of this cauldron is around 1700 meters above sea level.

hofsjokull_24sept2013
Hofsjökull volcano and glacier. The new glacier cauldron is located at ~64°49,5‘N; 18°52‘W. Click on the image for full resolution. Image from NASA/USGS/Icelandic Meteorological Office/Geological Department of University of Iceland (Jarðvísindastofnun Háskólans).

According to Icelandic Meteorological Office this part of the glacier has not had any glacier cauldrons before that they know of. This cauldron has the volume of 1 million cubic meters (106 m3) according to Icelandic Meteorological Office. This area now has highly active hydro-thermal area and hot-springs. What formed this glacier cauldron is unclear at the moment, it was not an eruption since no such signals have been recorded from Hofsjökull volcano before or after the glacier flood in August-2013. It is also unclear if this glacier cauldron is going to create new glacier flood in the future.

Icelandic Meteorological Office announcement

Hlaup úr Hofsjökli í ágúst 2013 (vedur.is, in Icelandic)

Icelandic News

Fundu sigketil á Hofsjökli (mbl.is, Icelandic)

Blog post updated at 21:02 UTC on 11-October-2013.
Blog post updated at 01:45 UTC on 12-October-2013.

Glacier flood from Hofsjökull volcano continues

Yesterday (21-August-2013) saw the start of small glacier flood from Hofsjökull volcano, this glacier flood has continued today and west Jökulsá in Skagarfirði continues to smell of sulfur and is dark color. Conductivity remains high in the glacier river following this glacier flood. It is not known currently for sure what areas of Hofsjökull volcano this comes from or what cauldrons are emptying of hydrothermal water build up.

Announcement (seen on Facebook) from Almannavarnir (Iceland Civil Protection) and Icelandic Meteorological Office on the strength of sulfur following this glacier flood is so high that it is dangerous to be close the source of the glacier flood (closest to Hofsjökull volcano). Strength of sulfur in the area is high enough to damage people lungs, travellers in the area advised to stay away from the source of the glacier river Jökulsá until this glacier flood is over, that might take few days at most. No earthquake activity has been observed in Hofsjökull volcano following this glacier flood. The volcano has been completely quiet during this glacier flood and at current time do not expect it to show any activity. Currently there is little known about Hofsjökull volcano and the activity in it, since it has never erupted during modern era (past 12.000 years).

Icelandic news about this glacier flood

Kanna hvað er á seyði í Vestari Jökulsá (Rúv.is, Icelandic)
Lítið jökulhlaup í Hofsjökli (Rúv.is)
Hlaup í Vestari Jökulsá (mbl.is, pictures)

Blog post updated at 16:56 UTC on 22-August-2013.