According to Iceland Review Online the eruption in Eyjafjallajökull is officially over. But it remains to be seen if the eruption restarts like did happen in 1821 to 1823 eruption in Eyjafjallajökull.
Iceland Review Online news.
Eruption in Iceland’s Eyjafjallajökull Officially Over
Thanks to Chris for pointing this out to me.
Update!
It was brought to my attention that Almannavarnir in Iceland have not declared the eruption over in Eyjafjallajökull. So the news in Iceland Review appears to be wrong in that respect.
Blog post updated at 10:08 on the 29th of October 2010.
How big the eruption was in relation to other well-known eruptions?
Big numbers always appear big :-), but it is nice to put them in perspective. E.g. how many similar eruptions occur per year/decade/century?
…in terms of erupted volume? duration? damages? media coverage?
The Eyja eruption was VEI 4, if I have understood correctly. Chech this article for comparison: http://en.wikipedia.org/wiki/Vei
Well that is a sad bit of news from Iceland. I enjoyed the coverage of the eruption and it was nice to see a different style of eruption from Iceland. I believe this is the first time we have been able to witness one of the large strato-volcanoes of Iceland erupt. I look forward to studies done in the future to see what we can learn of the magmatic system and variations of magma erupted from this amazing volcano.
Is this blog coming to an end? I have learned more in the past three weeks than I have in the past six months.
This blog is just starting. There is always something interesting happening in Iceland. But from time to time I do get a break when it is a quiet time happening in Iceland. The length of that break depends on how long the quiet time lasts.
@Lurking (OT): What software do you use for making your plots?
Do not know what @Lurking use, but Topcat is a good to make many graphs, 2d and 3d.
http://www.star.bristol.ac.uk/~mbt/topcat/#webstart
Dplot: http://www.dplot.com
I wound up using it since it pretty seamlessly integrates with Excel and can spit out a 3d scatter from whatever I’m fiddling with by clicking a drop down box. Excel may be fairly easy to use, but 3D plots are lacking.
I’ve also found out that it can import GIS shapefiles (2d) pretty easily, and I’ve generated a few volcanic outlines with Diva-GIS, imported the 2d shape to Dplot, saved it out as .csv, opened it in Excel and assigned an elevation for the points, and then pulled the outline to the 3D scatter in Dplot.
I’m hoping that the author adds the basement 2d image feature that I asked him about, that would allow the 3d scatter to make a drop shadow on the 2d image anchored on one of the plot planes… so far it’s just a requested feature.
Another neat part of the progam I have yet to explore, is the ability to directly pull in certain .osc files generated by some brands of digital oscilloscopes.
The program can also do Ternary plots (triangle plots) if you are really into petrography.
http://www.dplot.com/blog/2009/06/ternary-plot-options-for-rocks.html
Oh yeah, you know that Moho layer that I have of Iceland? I made that by digitizing a moho image from one of the papers that get linked to from time to time. That was done with Dplot.
Sure, there are other programs (and probably less expensive) that can pull off some of these tasks, but I like the ease of use. It also makes up for some of my math deficiencies since there are several curve fitting routines in there. (some of which I can’t even fathom)
A lot of EQs at Reykjanes ridge today.
15:36:26 63,601 -23,56 14,2 2,9 90,01 16,0 km VSV af Geirfugladrangi á Rneshr.
15:03:08 63,523 -23,539 4 2,4 76,14 13,7 km ANA af Eldeyjarboða á Rneshr.
14:14:13 63,607 -23,514 19,8 2 42,01 13,7 km SV af Geirfugladrangi á Rneshr.
13:59:06 63,592 -23,553 5,9 2,4 90,01 16,3 km SV af Geirfugladrangi á Rneshr.
13:40:26 63,618 -23,62 16,6 2,6 57,67 16,9 km NNA af Eldeyjarboða á Rneshr.
10:48:24 63,628 -23,634 18,1 2,3 74,74 17,5 km NNA af Eldeyjarboða á Rneshr.
10:17:00 63,626 -23,626 10,9 2,8 90,02 17,5 km NNA af Eldeyjarboða á Rneshr.
10:00:14 63,573 -23,541 6,2 2,5 90,01 16,0 km NA af Eldeyjarboða á Rneshr.
Here an article in the IcelandReviewabout the new crater in Fimmvorduhals:
http://www.icelandreview.com/icelandreview/daily_news/?ew_news_onlyarea=&ew_news_onlyposition=35&cat_id=16567&ew_35_a_id=369533