At the current time earthquake activity in Krýsuvík volcano has slowed (when this is written) considerable down. But the earthquake activity has not stopped, even if it has slowed down considerable down. What is also interesting are the news about increased hydrothermal activity in Iceland (see older blog post for information on that). This lack of quiet time is interesting and gives the clues into that direction that inflow of magma might be constant. But might have slowed down as the earthquake swarm did slow down. It is interesting to notice that slowdown and few earthquakes where also common in the weeks before the eruption in Eyjafjallajökull volcano.
This activity in Krýsuvík volcano has gone out in the Icelandic media fast. But there have been the common questions if this area is about have a eruption. But at current time the general agreement is that nobody is sure about it.
Off-topic! I want to thank all the people how have supported me with donations. But I did not expect this huge response that I got. Thanks so much for the support. It won’t be forgotten in the future.
The fact earthquakes seem to be moving almost in a linear feature..and getting closer to the surface..is that of interest? or is it part of the collection/science,needing to be reviewed and corrected?
Do you have data that shows the earthquakes are moving closer to the surface? From what I’ve seen (Lurking’s plots and my own analysis) they are focused around 4-6km deep recently.
According to reviewed Icelandic Met Office data there is a focus point of earthquakes at 5 km depth. The earthquakes don’t appear to be a lot higher then that at the moment.
The settings in Krýsuvík volcano are different then the ones in Eyjafjallajökull volcano.
The Strain Rates near the Hekla measuring points have had a significant drop in the recent hours. is it possible, that this drop is somehow related to the activity at Krisuvik? or might this have to do with Hekla?
http://hraun.vedur.is/ja/strain/str_corr/index.html
There was a storm in the Hekla area tonight. So the strain might just reflect that change.
then it must have been a really heavy storm indeed : ) the change in strain was above changes i’ve withnessed so far.
The wind was up to 20m/s south-east Iceland. I do not know what it was exactly in Hekla area. But given the output from my geophone in that area. It was a lot.
Jón – or anyone else – do you know if the IMO publish the seismometer data other than the graphs? I am looking for the numerical data or particularly the data from the past older than 10 days.
I mean the data they use to generate graphs such as this one. http://hraun.vedur.is/ja/oroi/kri.gif
Sadly they don’t. But if you read the week reports you can often find detailed data in there sometimes.
http://hraun.vedur.is/ja/viku/2011/vika_08/index.html#mark
It is in Icelandic.
The latest earthquakes on Reykjanes ridge look like a kettle starting to boil.
Looks like the swarm increased in intensity again.
Inflation continues at Krýsuvík.
http://strokkur.raunvis.hi.is/~sigrun/SELC.png
The upligt is quite remarkable but so is the North / East movement. Not as much but a clear trend that the area is bulging.
I meant uplift..
The movement to the east makes sense: The GPS-station is located south of the lake. Most of the quakes happened west of the lake, so if magma pushes up west of the lake (and the GPS sensor), than we can expect movement to the east.
OT: just wondering if those are a couple of little harmonic tremors in the Grimsfjall tremor plot? I’m probably wrong, but I’m trying to learn enough to keep up with you folks!
This looks abit more like wind disturbance. At IMO website it is stated a warning for Gale winds in excess of 20m/s. And if you look at the wind speed map at IMO you can see that there are lot of strong gusts of wind.
http://en.vedur.is/weather/forecasts/elements/
A rather large transient in Hekla strainmeter again.
Oops, link: http://hraun.vedur.is/ja/hekla/borholu_thensla.html
A new blog post is up! 🙂