There was a change in the eruption in El Hierro volcano last night. The harmonic tremor started to drop of slowly. This drop in harmonic tremor comes several days after a drop in earthquake activity happened. But it might be possible that this drop in earthquake activity in north El Hierro volcano might be because a erupting vent did open up in north El Hierro volcano. But at such depth that the eruption was not noticed on the surface on the ocean. At least that might be the reason. But without any data, this is just a speculation. But at any rate, the earthquake activity in north part of El Hierro volcano has dropped down to almost zero in few days time.
The harmonic tremor yesterday (5 December, 2011). The drop in harmonic tremor can clearly be seen here. Copyright of this picture belongs to IGN (Instituto Geográfico Nacional).
The harmonic tremor today at 08:15 UTC. The harmonic tremor continues to drop during the past few hours. Copyright of this picture belongs to IGN (Instituto Geográfico Nacional).
The harmonic tremor drop is something that has happened before in El Hierro volcano. Just before a new fissure did open up in El Hierro volcano eruption. I am unsure if that is the case now. But it should become clear in about two to three days. But it is also a possibility that this eruption is coming to a end. But it has been erupting now for close to three months now. So this eruption might just ending. But we might have to wait a bit until that is confirmed. But at the moment the harmonic tremor is dropping and that means the eruption is smaller for the moment.
Harmonic tremor drops, but the effusion at Bob keeps very active.
How about this quake at Hekla? Does it mean something, Jón?
14:22:12 63.948 -19.941 8.3 km 1.3 99.0 14.2 km WSW of Hekla
Only one small quake so far today. New emissions of steaming pumice pyroclasts were observed and picked up by the eager crew of the coast guard boat. It will be interesting what happens now in the coming day(s).
I need to upgrade the hosting account that I have. As the current hosting account is now just too small for this web site due to traffic.
I am going to let people know when the transfer takes place. But it is going to be few days from start to finish. This is going to increase my hosting cost from $14 to at least $100 pr month. But it might go as high as $115. But that just depends on the hosting package that I need.
If you have bandwidth problems, why don’t you apply for a Scienceblogs blog, or open a new one on wordpress or blogspot? It would be cheaper for you and a more reliable choice on the long run.
How are you going to cope with the greatly increased costs otherwise?
I should be able to use the dedicated server for a long time, as it is a big jump from shared hosting that I am currently using.
But more traffic brings in more revenue for me. It is my goal trying to live off what I write about. So in the long term, the cost should not be any issue. But it might be so in the short term.
Currently this blog has out grown its shared hosting and that is creating loading problems and so on. So something had to be done quickly.
I also want to be ready for the next eruption in Iceland. But when that happens the traffic to this blog and the forum is going to increase fast for few days to week (depending on eruption). The server that my web site is on needs to be able to handle that properly.
But for dedicated hosting. I am at least going to start small and work my way from there.
I also feel it a better solution for me to host it my self. As there are also traffic limits on the free service on WordPress blog system and on IP.Board system (I checked for IP.Board for that option). I also do not get any advertisement revenue if I host on wordpress.com blog system. As they have there own ads, to cover the cost of there own services that people use.
I hope that this explains it properly. 🙂
To decrease load on your website without using external blogging services you might want to consider using the Disqus commenting system to move comments bandwidth away from your web hosting system:
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Some lights on Katla cam (manmade). Are they searching for something?
http://www.ruv.is/katla
Maybe just a trip with some tourist on the glacier. I have no idea what they might be doing there.
They have been using a helicopter again this morning to ‘search’ for something up on Katla.
They have been back again this evening. I would hazard a gguess that it might be practice rescue sessions. Here the lifeboats regularly go out and do ‘manouvers’ just to keep in training and for Katla the conditions must be perfect for exercises as although a lot of lying snow and very, very cold the wind is lower.
This is something what the coast guard does on a regular basis.
The quake has acquired a greater extent, 09:25 and has been a very strong smell of rotten eggs, sulfur la Restinga, the wind comes from eruptive area, which seems to confirm an increase in measurement by the mobile station SH2 de la Restinga.
Date Time SO2 (μ g/m3) flag SH2 (μ g/m3) flag is not (μ g/m3) flag NO2 (μ g/m3) flag flag NOX (μ g/m3) 12/06/2011 22:00 3 6 6 T T T T T 5 1 06/12/2011 21:00 6 3 T 4 T 5 T 1 T T T 6/12/2011 20:00 5 1 2 2 T T T T 6.12 5 / 2011 19:00 T 6 T 2 T 1 T 3 T 5 T 6 12/06/2011 18:00 2 T 1 T 3 T 5 T 6 T values 12.06.2011 17:00 3 1 T 3 T 5 T T you can see on the web: http://www.gobiernodecanarias.org/cmayot/calidadaire/datosOnLineEstacion.do?ides=124
Many vehicles in Katla, tourism?
Seems they maybe filming A Game of Thrones up there!
from volcano cafe
http://www.ruv.is/sarpurinn/djoflaeyjan/06122011-0
just got my email address wrong so the link that may confirm that is awaiting moderation 🙂
I was just watchin’ the live webcam at el hierro and there are clearly seen bubbles I guess and lots of steam, probably from volcanic stones ejected…
btw. hello everyone, jon especially. although I follow this blog for more than a year I haven’t had said anything up till now. so cheers everyone. regards from Croatia
The geysirs are so strong today. Is this common? Thanks in advance!
http://eldgos.mila.is/geysir/
You mean the steam columns are higher than normal? No wonder, this area has actually -15°C.
This is just normal activity in the cold, just as Chris says.
Jón, last night the tremor was very explosive and some drum solo too, even the activity in the jacuzzi area was visible at night with a rotten eggs odor very intense in La Restinga at the same time the long explossions happened.
Webcam is showing the moon rise over Hekla – nice;
http://eldgos.mila.is/hekla/
I have been having problems connecting to IGN web site. Is that the case with everyone here ? Or is this just me.
Works fine for me.
There was a server with 01 in front of it. It stopped working. I do not think it is working now. But I found that I can just use the IGN web page without 01 in front of it.
Apparently it has been down for a while, but is working now.
Well you called it Jonny, the BBC has a video that shows the birth of a new volcano believed to be 14 days old.
I read the transcript because I couldnt get the video to download…too big.
Check it out folks on the BBC website.
I am not finding this news on the BBC News web site.
It’s reuters that has the video http://uk.reuters.com/video/2011/12/07/scientists-map-an-infant-volcano?videoId=226383394&videoChannel=82&refresh=true
It has dropped before in this sequence. It tends to drop and then slowly build up again over time and then something “snaps” an it is back at full force. It behaves as if something has become blocked reducing tremor, then pressure builds up and whatever was “blocking” things becomes “unblocked” and the system returns as before.
I notice the tremor has been exhibiting the same pattern this time: sudden drop followed by a gradual increase.