Updates to PayPal buttons and new geophone

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I don’t want to add long none-volcanic articles to this website. I did not want to do so due to length and the subject in question, so I did write it on my website called “Jón Frímann bloggar” and it can be found here. Please read it if you can.

New geophone going to be added

I plan on adding a new geophone to Hvammstangi soon. I don’t have exact date yet. This just using current hardware that I have to set-up this new station. I did get a computer to do this. It is just missing the hard drive and needs more ram and some version of Windows (maybe Win 8.1). I am looking into that cost, but at the moment I can’t afford it. This means that while I am going to be living in Hvammstangi there are going to be two geophones active in that area, once I get the other one up and running, allowing for higher resolution of any earthquakes that might take place in nearby area. I always have a geophone with me where I live to record earthquakes. Updates to webicorders website are going to uploaded soon, once I have finished working and updating it.

PayPal buttons and donations

Please remember to support my work with donations or by buying from Amazon if you can. If you can’t, don’t worry about it. I know that not all of the people who read this website can afford supporting my work and that is good too. I have now updated the donations button to my Danish Paypal account, the text once the button is clicked should be in English. If people want to donate more then 500€ please do so directly with your bank, since PayPal might not allow that high amount go trough my account at present time, since my Danish PayPal account is new and lacks one verification at current time. Information on how to donate directly with your bank information can be found here. Thanks for the support.

Article updated at 03:33 UTC on 12-April-2015.

Posted in Webicorders, Website | 15 Comments

Deflation has stopped in Bárðarbunga volcano

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According to a short news today on Rúv it appears that Bárðarbunga volcano has stopped deflating and activity is slowing down in new hydrothermal vents that opened up during the most active period of Bárðarbunga volcano. The rift activity that has started in this region of Iceland is not over yet, even if there is nothing happening at current time.

It is impossible to know when next period of eruptions starts in this area. Until then it is going to remain mostly quiet.

Icelandic news

Sigið í Bárðarbungu er hætt (Rúv.is)

Posted in Bárðarbunga, Deflation, Monitoring, Volcano | 15 Comments

Minor earthquake swarm on Hekla – SISZ boundary

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During the night of 9-April-2015 an earthquake swarm started on Hekla volcano – SISZ boundary. This has been for most part a minor earthquake swarm so far. With largest earthquake only having the magnitude of 2,8. This earthquake activity has appeared clearly on my Heklubyggð geophone.

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The earthquake swarm is located north of Mýrdalsjökull and Eyjafjallajökull. South of Hekla volcano. Copyright of this image belongs to Icelandic Met Office.

This earthquake swarm appears to be tectonic in nature. This means there is a higher chance it might be related to stress changes in SISZ (South Icelandic Seismic Zone), rather then any activity in Hekla volcano. There is little chance in my view that this activity is going to trigger any eruption in Hekla volcano, I just can’t rule it out at the moment. Currently it appears that this earthquake swarm is ongoing. This earthquake swarm doesn’t appear to be moving quickly at the moment, that might change but I am doubtful that is going to happen while minor earthquakes are just taking place. If stronger earthquakes start to happen this minor earthquake swarm might grow into a middle sized one or a big one. Largest known earthquakes in this area have reached magnitude Mw7,0. Such earthquake has not taken place in this part of SISZ for the past 103 years. Currently there is nothing indicating that earthquake with that type of magnitude is about to take place.

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Article updated at 00:20 UTC on 10-April-2015.

Posted in Earthquakes, Hekla, Monitoring, SISZ, Swarm, Volcano | 1 Comment

Earthquake swarm in Krísuvík volcano

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Today (31-March-2015) there has been a minor earthquake swarm in Krísuvík volcano. Total number of detected earthquakes was 27 so far.

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The earthquake swarm in Krísuvík volcano today. Copyright of this image belongs to Icelandic Met Office.

Largest earthquake in this swarm had the magnitude of 2,6 according to reviewed results from Icelandic Met Office. Other earthquakes where smaller in magnitude. This is just tectonic activity at the moment. There has been inflation and deflation taking place in Krísuvík volcano for past several years and such activity is known to start strong earthquake activity in both deflation and inflation stage. At the moment there is nothing suggesting there is an eruption imminent in Krísuvík volcano.

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Posted in Earthquakes, Krýsuvík, Monitoring, Rift Zone, Swarm | 13 Comments

Deep earthquake activity in Bárðarbunga and Öræfajökull volcano

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Today (28-March-2015) there has been deep earthquake activity in Bárðarbunga volcano. This suggest that there is a fresh injection of magma into Bárðarbunga volcano system. If this is going to result in new eruption remains to be seen. It is not impossible at current time to happen. So far however nothing has happened. Deepest earthquake had depth of 21,1 km, others earthquakes are shallower.

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Earthquake activity in Vatnajökull glacier today. Copyright of this image belongs to Icelandic Met Office.

Öræfajökull volcano

Today (28-March-2015) there has also been deep earthquake activity in Öræfajökull volcano [Wikipedia link here]. This activity is not new and has been taking place every few months for the past 10 years or so. Quiet times are different in length. Each earthquake swarm that takes place is different in both magnitude and length, current activity appears to be deep, but mostly small earthquakes, less then magnitude 1,5 for most part. Deepest earthquake in this swarm had the depth of 25,0 km. This earthquake activity is only due to fresh magma entering Öræfajökull volcano system, not tectonic activity in this area due the depth of the earthquakes are taking place.

Based on historical accounts of earlier eruptions (1362 and 1728). It appears that eruptions in Öræfajökull start with powerful earthquake swarm (magnitude 4,0+ earthquakes). The following eruption is an ash cloud one with glacier floods taking place, with that phase lasting up to 48 hours. What happens after that is unclear, since it was not documented properly by historical records (at least not properly mentioned or lost due the old age of the historical records in question). Eruptions can last for up to 45 days, based on earlier documented eruptions. Current earthquake swarm is inside Öræfajökull volcano, since it is not round volcano, but goes a little to north where the earthquake swarm is taking place. There is no fissure swarm connected with Öræfajökull volcano, it does not rule out that one exist, it is at least not known at the moment. At the moment there are no clear sign that there is increased eruption risk from Öræfajökull volcano. That might change without warning, as is always the risk with volcanoes.

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Posted in Bárðarbunga, Dyke intrusions, Earthquakes, Magma, Monitoring, Öræfajökull, Swarm | 44 Comments

Risk of landslide forces the closure of popular viewing place in Skagafjörður

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Due to risk of landslide a viewing area in northern Skagafjörður has been closed. Tip of a cliff in the area is about to break off at any time and without warning and there appears to be considerable area getting ready to go forward into the coast line below. Please see attached news for pictures.

Útsýnisstað lokað vegna öryggisástæðna (Vísir.is, Pictures)
Hættulegar sprungur í Ketubjörgum (Skagafjörður.is, images)
Lokuðu vinsælum útsýnisstað í Skagafirði (Rúv.is, Images)

Posted in Collapse, Landslide | 6 Comments

Minor earthquake swarm in Hekla volcano

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Since yesterday (26-March-2015) a minor earthquake swarm has been taking place in Hekla volcano. This has not been continuous earthquake swarm and there has not been huge number of earthquakes taking place. Largest earthquake had the magnitude of 1,4.

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

This earthquake activity took place deep inside Hekla volcano, with the deepest earthquake being on 17 km depth (mag 1,4). Other earthquakes took place on shallower depths, but all depths where greater then 10 km. What exactly is happening I do not know, at this depth it is possible the earthquake activity taking place is due to magma movement rather then tectonic changes. I don’t expect any eruption to take place in Hekla volcano at current time.

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Posted in Dyke intrusions, Earthquakes, Hekla, Magma, Monitoring, Swarm, Volcano | 7 Comments

Minor earthquake swarm close to Eldeyjardrangar on Reykjanes ridge

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During the night (on 21-March-2015) a minor earthquake swarm took place close to Eldeyjardrangar on Reykjanes ridge. Largest earthquake in this swarm had the magnitude of 3,2. Total number of earthquakes in this swarm was around 30.

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Earthquake swarm close to Eldeyjardragnar. The green star shows the magnitude 3,2 earthquake. Copyright of this image belongs to Icelandic Met Office.

Earthquake swarms like this are common in this part of the Reykjanes ridge. It is difficult to know if more earthquake activity is going to take place soon.

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Article updated at 20:01 UTC.

Posted in Earthquakes, Monitoring, Reykjanes Ridge, Swarm | 8 Comments

Minor earthquake swarm on the Reykjanes ridge

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Today (19-March-2015) at 15:24 UTC a minor earthquake swarm started on the Reykjanes ridge. This earthquake swarm was minor, it however might be clue that more activity might happen soon in this part of the Reykjanes ridge.

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The earthquake activity on the Reykjanes ridge today (19-March-2015). Copyright of this image belongs to Icelandic Met Office.

Largest earthquake in this swarm had the magnitude of 3,5 and other earthquakes where smaller. Last earthquake swarm in this area took place on 3-March-2015 and I did write about it here.

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Posted in Earthquakes, Reykjanes Ridge, Swarm | 3 Comments

Bárðarbunga volcano continues to deflate

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The eruption in Holuhraun is over and nothing has been happening the crater for the past three weeks. This does not mean the deflation is over in Bárðarbunga volcano. Currently Bárðarbunga volcano continues to deflate at the rate of 2cm/day, total deflation since 31-August-2014 is around 60 meters. All this deflation has started to move the glacier inside the caldera, creating what appears to be inflation, that change in the glacier, that inflation is 1,5cm/day. That inflation should be 3-4cm/day according to Icelandic Met Office, so the difference is the deflation taking place. Currently the GPS sensor inside Bárðarbunga volcano caldera is not working so the only way to monitor this deflation is to continue to fly over the glacier and measure it that way. Next scheduled flight for Bárðarbunga volcano is going to take place after Easter.

News in Icelandic

Bárðarbunga hefur sigið um 60 metra (Rúv.is)

Posted in Bárðarbunga, Deflation, GPS data, GPS Monitoring, Magma, Monitoring, Vatnajökull glacier, Volcano | 25 Comments