Nautilus at Kick’Em Jenny Weekend + Friday Riddles + Sakurajima Pyroclastic Flow Update

For all points and purposes this is about as fas as human civilization has gone.

For all points and purposes this is about as fas as human civilization has gone.

After a week of following the magmatic emplacement out by Eyjafjarðar at Gjögurtá in Iceland it seems like the activity is slowly diminishing. One should though remember that the activity can resume at any given moment, and that the magma probably will continue to propagate upwards over the next couple of years even if no new magma is introduced into the system.

Who does not love volcanoes backlit by Auroreal light? Have a nice weekend everyone!

Who does not love trap-formation volcanoes backlit by Auroreal light? Have a nice weekend everyone!

During the last couple of days we have learned that the area most likely has had a shallow magmatic emplacement during the last 10 000 years, this is evidenced by the unique fresh water hydrothermal vents. These vents have created a unique environment in the Antarctic Ocean, and if an eruption occurred that micro-environment would be lost forever.

Nautilus at Kick’Em Jenny

During the weekend Nautilus and Dr. Robert Ballard will reach the end of the Journey, they will among other things investigate the volcanoes of Kick’Em Jenny and Kick’Em Jack in the Lesser Antilles. Nautilus is a Remote Operated Vehicle (ROV) exploring the ocean floor. I suspect that this will be the staple diet cam-food for the weekend, so let us make it official.

Kick’Em Jenny is as you know one of the more enigmatic volcanoes in the West Indies, and having a good look at her has long been on my list of things to do. Thanks to the Nautilus campaign I get to do it from home.

Friday Riddles

National Cinnamon Bun Day

National Cinnamon Bun Day

Where I live it is the National Cinnamon Bun Day, and I am making the best out of that. Try some with the weekly volcanic riddles.

As usual, two points will be awarded if you solve the riddle before I append the clues, 1 point with clues.

  1. You + Image – Barú in Panama (Lughduniense 2pt)Lottas
  2. Johann Sebastian Bach’s Favourite Volcano – Aira Caldera after Bachs most famous piece, Air (Aria) from Orchestersuite no 3 in D Major BWV, Bach Welt Verke, 1068 (KarenZ 2pt)
  3. Ja bar lay. – Jabal Yar (Harrie 2pt for finding this Saudi Arabian volcano)
  4. At the feather hill – Quetzaltepeque (Shérine France 2 pt)
  5. Not Davy Jones and his locker, but his knife wielding American namesake – Bowie Seamount (Henrik 2pt. David Jones, aka David Bowie)

Do not forget to go and visit the Volcanocafé Facebook Group Page:

Best of luck and have a very merry Weekend!



This is five minutes from start of a pyroclastic flow from Sakurajima untill it reaches the shoreline. The ash column hit hard winds and a rainfront and emediately collapsed into a columnal base surge/pyroclastic flow. The ash flowed the entire way to the shoreline in less than 4 minutes. If anyone was there they are dead now. I am posting the entire sequence up untill it hits the water. The images comes from this cam:

Images are from minute 0 with the max columnal height before breaking at ends as it hits the beach.








337 thoughts on “Nautilus at Kick’Em Jenny Weekend + Friday Riddles + Sakurajima Pyroclastic Flow Update

    • Given the climate, and its ability to trash your nose and throat, I can see where this could be a popular treat.

      I have a grandkid who is freeking nuts over anything sour. Even at 20 he eagerly seeks it out. At 21 I’m gonna make him a whiskey sour andd see what he does.

    • Coming from the only country on the planet that actually understand the “Finnishness” I might be able to describe it.
      A Finn is a depressed perfectionist who goes through life making anything into a challenge of survival and bravery. Especially younger Finns suffer from this condition. It springs out of them wanting to prove that they are equally Finnish as their parents or grandparents who once and for all proved what Finnishness is when they pulped Stalins army. A Finn must prove himself against overwhelming odds, and while he does that he most be totally convinced that he will not survive. During the war entire Finland was convinced that no one of them would survive, so they sent their children to Sweden, and then they got going. There was literaly no hope, but still they did it.

      The overwhelming odds thing is still there, so about 20 years ago a young Finn named Linus Throrvalds decided that he would crush Microsoft by creating a far better product. Together with a friend in a house nearby they sat down and coded 80 hours a week, got roaringly drunk on saturday, and did another 80 hours. Over and over and over… The entire time knowing that they would fail. Today all servers and about 9 percent of all PCs run on Linux.

      In Finland there is only one sport… Hockey. They play it for one reason only. To beat the living daylights out of us. For a righteous Finn there is only one Final in a Championship, and that is against us. The rest of the planet is just hurdles on the way to be crushed in the most horrifying way possible.
      In the 2006 Olympics Finland fielded the best Hockey team that has ever stepped on ice. Before the game Russia was the favourites, but after a few matches the Finns where the favourites. They did not win the games, they utterly destroyed everything stupid enough to step out on the ice.
      As our team in a not so encouraging way meandered towards the finals every Swede knew in our hearts that this was not gonna end well. But somehow somewhere we got the strength back up to beat the Czeks in the semi-final. Hell… we also only count the meeting with the Finns…
      Enter Finland vs Russia. There is no love lost to beginn with, and here was a Finnish team with a mission from Knife, Vodka & Sauna (Finnish Trinity) to at all cost utterly crush Their Neighbour to get to us. In 3 times 20 minutes they so utterly crushed and demoralised the Russians that they have never gotten a real team back up and most of the Russians who played retired. It was the moment when every Swede sat silent infront of their TV sets and thought “Holy Mother of God, we are truly not going to survive…” with visions of Finns over-running our borders.
      What followed was quite simply the best Hockey match ever played. The Finns totally dominated, but somehow with two minutes left it was 1-1 when one of our defenders roared off one of the hardest shots ever produced.
      It is one of the few moments when Swedes have achieved true Finnishness, winning when all hope is utterly lost.

      Did I say that Finns are artistic? They are… Combine that with the urge for Perfection (and add a pinch of Depression and a healthy dose of Vodka) and you will not have car crashes. You will have massive artistic masterpieces of car-crashes. This Picture comes from Stoneyard as an example of the difference of Finnishness. I agree.
      In Finland this is called “Finnair”…

      Image and video hosting by TinyPic

      • Nice story, but the greatest hockey team ever is the Red Machine:

        Bratar (goalkeeper in Russian) – Vladislav Aleksandrovich Tretiak
        Defenders – Biljaetdinov, Vasiliev, Kapustin, Kazatonov, Gusev, Tzyganov, Golikov
        1st line – Petrov – Charlamov – Michailev
        2nd line – Maltsev – Jakushev – Lebedev
        3rd line – Makarov – Krutov – Larionov


        • Typical, people always admire soviet days!
          I have a nice bust of Breshniev that I will give you 🙂

          And… Poooty, you forgot Vjatjeslav Fetisov!

          • I left out a goodly few superstars such as Firsov, Ragulin and Balderis. I concede that I forgot Fetisov – together with Kazatonov probably the best-ever defence pairing. The point is that a SSSR second team could comfortably beat every other nation in the 1970s except the Czechoslovaks. Not even the hideously partisan refereeing of the 1979 Challenge Cup could stop the Red Machine from beating the NHL All Star team.

            PS. Could I have a bust of Gorbachev instead, please!

            • I do not have one. There was no Gorby busts issued. He felt that vodka and bronze busts was not needed in the new Soviet Union. If he had just kept the Vodka and the Busts Soviet Union would still be there…

              I have Lenin, Stalin (bust and statue) Chrustjov and Breshniev busts. I also have a few official oil paintings too. I started collecting them as the Soviet Union fell. My plan is to one day transform my Stalin statue into a garden fountain. I am currently hunting for Dzershinskij bust or statue.

        • Now you’ve done it.

          I laughed so hard at that pic, and the narrative leading to it, that my wife thinks that I am enjoying that peice of shit movie she is watching…

          Nothing against her, just different tastes.

        • For an exposition on sleaze.. look into the Caldera vs IBM (and everyone) story. Caldera bought the name SCO and then tried to pretend that they owned the rights to Linux’s constituant parts.

  1. The Harvey Wallbanger…

    It might be the second simplest drink to make in the history of mankind, only simpler one is the Screwdriver. It might though be the best drink ever.
    1 part galliano
    3 parts good vodka
    6 parts fresh orange juice
    Shake, and poor into a highball with ice.

    And here is a man with a strong urge for one.

  2. I have a question that occurred to me and I think it should have asked it long ago: is Iceland partially a craton or is it entirely oceanic crust, like Hawaii?

    • It is not a craton, and it is not oceanic crust either. Oceanic crust normaly contain quite a lot of sedimentary rock or sedimentary layers. Iceland is entirely made out of magmatic crust, but in parts it seems like it is magmatic crust pieces stacked ontop of each other.
      And, depending on how deep you look. There appears to be a slab graveyard down there which material is dragged up from by the mantleplume (but that was beyond your question).

      It was a really good question though since it has rather large ramifications. Hawai’i is on the other hand oceanic crust with loads of lava ontop, and that causes many interesting side-effects.

      • Thank you Carl! I was aware of the hidden slab that has been causing headaches all over the place for us trying to identify who is who in Icelandic tectonics. The question came about when I was watching Akureyri webcam and I thought: this is a fjord, but of what origin?
        Oh, yes, and headaches always come with side effects. 🙂

        • It is of magmatic origin. In the beginning that was one mountain. A volcanic trap-formation, but the rift continued to rift long after the volcanism had ended, and now we have a fjord reaching into the guts of what might be Icelands largest volcanic edifice. Funny really.

  3. Hi

    This is an update on the Tjörnes Fracture Zone earthquake animation from sept 21st to October 5th.

    The first part of the video is an event by event animation. I supressed the rotation to get a clearer vue.
    The title bar shows earthquake rank and date.
    The colorbar shows date on the left side and terrain elevation on the right.
    I have added an earthquake magnitude scale.

    The blue mesh at the bottom of the plot is the Moho

    The following sequences show all the quakes at once with various rotations.

    I have also added a still vue from the top.

    The “wedge” is clearly seen. The intensity of the quakes is stronger around Oct 3rd.

    Data form IMO and NOAA, made on Gnu Octave

    • What is interesting is that it is smack bang dead on the triple junction of Husavik Flatöy Fault (HFF) and Eyjafjardaráll Rift Zone. The wedge is following the HFF, but the epicenter of the top is bang on money going up the triple junction.
      Seeing that wedge after having read about them for years, seeing rock evidence for them, it is a dream come true for me. It is for me far more interesting than both the 2010 Eyjafjallajökull and the 2011 Grimsvötn eruptions. It is the first time I get to see the process believed to be behind the rifting fissure eruptions. And this regardless if it ever erupts in my lifetime.
      Magical and aweinspiring.

      Thank you DFM.

        • Yes. Laki rifted bottom up and a wedge shape was created. Just imagine the size of the emplacement, it was just the leftovers that got up above surface. Come think about it, that goes for all eruptions in Iceland, it is the spill over that we call volcanic eruptions. Even if this one never erupts Tyler, now you have seen the process behind Laki with your own eyes. That is really something.

          Now it is time for me to crawl into the sauna, and later go for testing the beer of our brand new micro brewery at my favourite watering hole. Have a nice volcano watching night everyone!

            • A few years ago, when I was working at a local computer shop, a lady from the NE US who was in town noted that it didn’t seem very hot here, seeing as it’s Florida. (it was February). I noted, “Wait until June”

            • June is the beginning of hell here. In that month, it usually gets to over 110 here. That persists through July. And there is no humidity here. Or rain. 4 inches of rain per year, and that is it.

            • We can easily get that overnight. If the rate gets to about an inch an hour, I have to worry about the drainage cuts in the monkey grass next to the driveway. The border grass doesn’t let the water out fast enough and I wind up with a shallow pool for a driveway.

            • I was there. It rained multiple times every day in siesta key. 22 inches of rain in 4 days. They said it was abnormal. But this year, it was hotter in Vegas than usual. It got up to 120, and there were wildfires in Red rock. I don’t think that happened before. It lit up the skies.

            • Now, it is getting cold quickly. But I must say that the winter is the best season of the year here. The early winter has the best days of the year, and I like the cold.

            • I’m hoping for a hard freeze here. That tends to kill back the bugs.

              One year, back when I was a volunteer firefighter, I was so cold that the spray from my nozzle froze to my bunker gear. When I got relieved, I had to trundle back to a relief station that had been set up (a bus with a heater) with my gear acting like some sort of weird plate armor. Some of our crew got in trouble for leaving a small isolated corner of the house burning so that they could stay warm.

              When it got time to leave, the arse end of one of our trucks promptly slid off into the ditch since the water dripping from the pump had formed a sheet of ice underneath it.

          • Likewise I think Laki was born just like this Icelandic swarm. From what we already discussed here at the blog, Laki has a few M4 and perhaps even a couple M5. With this emplacement we have seen one M4, so the process seems very identical.

            Only boggle-mind question is: why we don’t see more evidence of old rifting eruptions there? Well, I do not know the area, i have never been underwater at that place. I know that at Theista, just north of Krafla, one can follow evidence of many parallel fissural rifting of old eruptions (and of course the shields of Theista itself), and even a few recent late Pleistocene/ early Holocene ridges to the northeast, near Kopasker, in what is one of the LEAST known active volcanic regions in Iceland. There are lava fields from Holocene over there, and a few quite recent tuyas. This to say that the entire region around and north of Myvatn and Krafla has a landscape that resembles the dead zone: large long fissures, parallel to each other, across a wide area.

            From there, we have a situation similar to the one at Hengill. The normal rifting process changes to another angle and its a more of transform seismic zone (but still with rare occasional eruptions, and most underwater). The change of volcanic rifting zone to a transform zone is as complicate as in southwest Iceland.

            Like there, we have two transform seismic zones: one following towards Eyjafjordur, another towards Grimsey, both faults parallel to each other and oriented ESE to WNW, but with fissures opening rather S to N orientation. This resembles the South Iceland Seismic zone, the transform region between rifts in south Iceland. There, the transform runs W to E; and faults (and eruptions there) occurs with a SSW to NNE orientation. Both transform seem to have a ~70º angle (its not a pure 90º transform, so when rifting occurs, sometimes magma can escape upwards and result in an eruption, albeit rarely).

            in South Iceland, we also find another 2nd transform to the north, parallel to SISZ, from Langjokull to Hofsjokull. It is actually considered a transform zone, but its little active and where more volcanic activity has taken place. Faulting occurs SW to NE, and the transform region runs W to E. So, thats a 45º angle.

            Compare that with Reykjanes, 30-45º angle, dead zone with a near 0º angle, or a transform region 70 to 90º angle. Magma eruption is much superior when angle is low (and less earthquakes), when angle increases more tectonic events result (including bigger strain and bigger up to M7 events) and almost no eruptions, or very rarely and mostly small.

            I have said this many times: there seems to be an interesting play between the angle of the following things: A) orientation of the transform zones or rifting zones, B) the orientation of fissures and rifting/ridges/faults themselves, C) the general movement of the two continental plates. And even D) the existence and possible movement of the microplates themselves, in between the different rifting zones.

            Finally, it seems that when the angle changes abruptly, we have the largest volcanoes of Iceland. just look at google earth and the rifting of Iceland and see what I mean by all of this.

            If that area migrates northwestwards is possible, then it goes under the sea water, so it is hidden from view.

      • The stability of the boundaries between plates is dependent upon their relative velocity vectors. If a boundary is unstable it will exist only instantaneously and will immediately devolve into a stable configuration.

        Quadruple junctions are always unstable, and immediately devolve into a pair of stable triple junctions.

        On the boundary of any two plates, you have one of three general structures. Ridges (R)–trenches (T)–transform faults (F).

        Ridges are where the two sides are moving apart. They can occur on land or under the sea. (Iceland is a good location to find both as the MAR makes landfall, crosses it, and returns to under the sea)

        Trenches are collisional boundaries where the two sides are colliding. Subduction zones are where oceanic crust pushed under continental crust. or Orogenic zones (mountain building) is where continental crust collides with continental crust. (Alps, Himilayas) Additonally, Orogenic Zones can occur when when the continental crust is pushed up above oceanic crust. (Andes, Cascades)… typically punctuated by volcanoes.

        Transform Faults occur where the two sides move in opposite directions to each other. (San Andreas Fault in California, Alpine Fault in New Zealand)

        Manny of the possible configurations are unstable, and will evolve to a more stable configuration. For example, the Mendocino triple junction in California was slowly drifting north until it achieved and FFT configuration. (Transform-Transform-Trench) following the demise of the Farallon Plate.

        • Geolurking, you are a guy much more into the “details” than I am.

          Please have a look at the observation I have just done in my comment about angles of rifting relative to the plate movement, and see what you can comment about.

          My comment was at 23:59

          • The evidence, as you have (likely correctly) surmised, is buried under a lot of water.

            The key is probably going to involve locating the boundaries of this crust shard that could be a microplate unto itself. I’ve seen a rough outline of it from the historical quake plots.

            On the last big swarm of this region, there was a normal mode fault up along where the MAR turns north from the transform. That was probably what (of many) that instigated melt formation from decompression. The downside is that I have no idea how fast melt forms when the area gets extra space.

            • In SISZ transform region, eruptions occur at an average (should I round it) of 3000 years between eruptive episodes.

              The Grimsnes volcanic field, has around 10 cones, since ice age. But most eruptions have been circa 3000 BC, 5000 BC, 8000 BC.
              All small ones, like around 0.01 cu km3. Range VEI2 to possibly weak VEI3.

              In Hveravellir, Kerlingarfjoll, Hofsjokull, eruptions are also rare. Same kind of frequency at the very most.

              In Tjornes, eruptions seem historically more frequent (?). Like once every few centuries. But most are underwater.

  4. This “storm” is getting sort of funny. So far the biggest threat that it has manifested and reported, is that as some of the swells break and run up the beach, the outflow water runs out and collides with another incoming swell. When they hit is causes a general lofting of the water. Some surfers have reported being tossed as high as 10 feet above the surface…. and then falling straight back down.

    Karen, being a lackluster performer has highlighted the alarmists media’s desperate search for stuff to jump up and down, to give the winter storm in the Northern US a name. “Atlas” I actually watched one idiot showing footage of a tornado treking across the land and then point to it, saying “well, it’s mostly invisible.”

    Here is an analogy for what happened to Karen. Suppose you are standing on the roof of your house and you are trying to pull a bucket of water up with a line. How well you do your job is measured by how many buckets of water you can pull up to the roof. Now suppose that every time you get ready to pull up a bucket, someone pushes you off the roof. You don’t get many buckets up because you have to have to crawl back up to the roof, only to be pushed off each time. Thunderstorms are the energy mechanism of tropical storms. Every time one forms, it gets pushed off to the south east. Until Karen can establish a ring of storms, it can’t get any stronger. Right now it’s doing good to keep a closed circulation pattern… and it’s having a really rough time in doing that. It’s to the point now that I am no longer concerned about it. In fact, I’m going to grill hot dogs and sausage in a little while, just so that I can do something with the propane.

    Maybe this will give Sue and Vodka Bob a chance to fix their mascara and go on to the next catastrophe.

  5. Southwest Fires Captain Over LaGuardia Nose-First Landing

    Reportedly, the pilot took over control just before touchdown.

    “The question is why the captain took control,” Bill Waldock, who teaches accident investigation at Embry-Riddle Aeronautical University in Prescott, Arizona, said in an interview. “Normally, unless something major is wrong, the flying pilot is going to maintain control. The flying pilot can feel what the airplane is doing. When the captain takes control, it takes him a few seconds to understand what’s happening.”

    • This is nearly as bad as the Korean Airliner FUBAR at SFO. As an Instructor of mine used to say: “Cessna 150 or Boeing 727-STABLIZE your approach.!!”
      Something’s missing here…

      • A British flying magazine used to publish analyses of a couple of accidents every month.

        After a laconic narration of the facts of the accident, it would then pose the question: “Who was in charge? The pilot, or the plane?”

        If you let a perfectly serviceable aircraft fly itself into the ground on a simple visual approach on a CAVOK day, you’re a *passenger* and sitting in the wrong area..

  6. {grumble} Hot dogs. Yeah.

    Screw it, I’m adding sausage, with a side order of Bell Peppers, Onions and Celery sautéed in butter.

    And a beer for my entertainment.

  7. Another topic. Today I did a hike with some friends at Krisuvik. I finally hike to the top mountains there and saw the view around, and explored along (SW to NE) the ridge orientation.

    I had a few insights. Call them observations.

    1) all eruptions in Reykjanes form long fissural lines, with rows of volcanic cones. And massive lava fields flowing from them. All are monogenic cones. Be it at Reykjanes, Krisuvik, Blafjoll or Hengill, all eruptions happen each time in a new spot, there is no stratovolcano where the same vent erupts more than once. Hengill might have built a large complex over time, but still its not a stratovolcano and most eruptions happen somewhere else other than the main mountain.
    2) many parallel ridges are formed in the peninsula (at Krisuvik region, one sees several ridges for example), so it makes little sense to call a couple of them one VOLCANO A name and to a couple of other ridges, another VOLCANO B name. Where does one define where Krisuvik ends and where Brennisteinsalda starts? Eruptions occur everywhere in the peninsula, also in between those ridges, and especially a lot of the recent ones! No sense with those borders.
    3) Spots, mostly near the edges of the highest mountains, its where one can see strong geothermal activity, from where probably magma has intruded at short depth. Why is so? I dont know. Few places show geothermal hot springs at lowlands in Reykjanes (except at the tip of the peninsula).
    4) most recent Holocene eruptions are located not within the Pleistocene mountain ridges, but either in between them, or to the north or south edges of the peninsula. what this means I don’t know.
    5) also a lot more recent eruptions seem more visible towards the SW tip of Reykjanes and less towards the Hengill region, in terms of frequency.
    6) Just east of Svartsengi and immediately east of Fagradalsfjall, and immediately west of Krisuvik is another ridge called Fiflavallafjall, which is definitively an active volcanic region. With Holocene cones, geothermal hot springs and also recent swarms. Like Svartsengi, it is another main ridge parallel to the other ones but seemingly a separate one, if such definition would make any sense.
    7) Fagradalsfjall seems to have had recent eruptions as well, as I am unsure about that. Cones seem recent, swarms still occur ocasionally there, but no hot springs. It seems mostly a Pleistocene ridge.
    8) Immediately east of Krisuvik is another unnamed ridge (with Holocene eruptions but also Pleistocene), and then its Brennisteinsalda, and then Blafjoll, and then Hengill.
    9) when its snowing and windy in Iceland, it is really beautiful but also really cold. (yes, it was snowing there)

    • Ouch, you remind me it will start snowing in about two weeks here. Winters don’t seem to be as harsh in Canada as in Iceland, but they can be nasty and cold !

      • Are you guys also having a late start of the winter? Here we are in mid-autumn still. Ie, way to warm and late in the season really. We should be entering winter now.

        • British Isles are also having a mild season – not really out of summer yet. But we are forecast to have lower temperatures later this week – down to the seasonal average rather than actually cold.

          • Yep – the seasons seem to have moved slightly round – it was still winter in May and now it is pleasantly mild.

  8. “Where does one define where Krisuvik ends and where Brennisteinsalda starts? ”

    I believe I saw this question debated not so long ago, and the answer I heard is geochemistry; each volcano has a unique geochemical signature. Different sources, different magmas, different volcanoes.

    • Exactly, Brennistein means sulphuric rock in icelandic. Brennisteinsalda has higher sulphuric content in the lava than Krisuvik and the closeby Hengill.

  9. There was no pyroclastic flow at Sakurajima as this photo shows. Had there been, the slope would not have been verdant green as can be seen in this webcam screenshot:

    Sakurajima Oct 6 at 0614 GMT

    • Good morning, Henrik and everyone!
      I don’t think that there have been any pyroclastic flow either – not that large -, and even if there were, or whatever those images of the supposed “flows” had shown, they have been taken from the opposite side of the volcano.
      As for the second eruption that I mentioned at 14:30, the winds were blowing directly over Kagoshima, and probably by the time your shot was taken, the plume had already settled.
      I believe Sakurajima has produced some p-flows before, but they have been far smaller than yesterday’s shots, going just a little far from than the crater. Probably people and scientists are quite aware of the radius that such flows may reach, or the whole island had been evacuated long before.

      • Good morning Renato! You at least will be relieved that nothing happened. I’m not so sure about quite a few others in spite of their oft-repeated assurances to the contrary… 😉

    • There might have been a small one on the Showa Crater but we would not have seen it for cloud cover at the time. That would be located on the right side of the volcano in the image above.

    • I do not think it was a pyroclastic flow either. I mentioned it as one of two options, the other being an ash column failure. Now I am convinced it was a columnal failure. It would though not have been nice being caught inside of it.

  10. Klyuchevskoy is no longer 4,750 m a.s.l. As this close-up shows, there has been a substantial increase in height over the past week. Also clearly visible thanks to the light cloud draping it is the “hump” that has been mentioned previously. Unless my directions are totally out, this is the north face of Klyuchevskaya Sopka / Klyuchevskoy Vulcan.

    Klyushevskoy on Oct 6 at 0620 GMT

    • Nice capture. Klyui must be a strong candidate for sector collapse at some stage. How much taller can it grow before something gives?

    • I must admit to having a horrible fascination with that hump.
      I wonder if there in the past has been a vent up at what would then have been the top of the hump? Thinking here that the hump might once actually have been the top of the volcano. Hm…

      • Hump, ridge, swelling belly… I do not know what to call it, but it is the part at the top the is jutting out towards the cam yes.
        Regarding the cone, I am in a mind that it is a spine extrusion or a dome plug exctrusion. Regardless, it would still heighten the top of the mountain raising the height all over.

    • Hi Karen, thanks for the info and links. I still don’t believe that El Hierro has finished it relatively recent activity, so I find it fascinating to continue to watch these small quakes.

    • As you can see, I have already published that particular photo Tyler. The explanation is that the last week’s activity (basaltic eruption) has built a new cone similar to that of Etna’s New South-east Crater, only that whereas Etna has taken the best part of three years to “paroxysmise” enough material, Klyuchevskoy has done it within ten days of more or less one continuous eruption.

      • I am feeling Cryphic today, so let me prophetize a comment from Boris here 🙂

        “Etna did it in shorter time if one count the eruptive hours only”.

        Boris spanked me with the math for it a while back. I think that the pertinent numbers was that Etna did it in 36 hours of eruptive time. Might be wrong on the hours though.

        • How many paroxysms have Etna had over the past three years? 80? And with each paroxysm lasting between two and three hours it’s at least a week and more likely two. Plus you have to figure in the continuous lava flows (at least two to judge by nighttime pictures) that extend several kilometres down the flanks of Klyuchevskoy. At his most optimistic, Dr Behncke may claim a draw. 😉

          • Aren’t we missing a scale or something here? Anyone want to run up to the top and install a meter measure or something for us so that we can assess the height of the new cone?

            • Sherine produced a photo earlier today that shows the cone (at an earlier date) inside the summit crater. As it now has filled that crater and stands ~100 m above the former rim, it’s fair to say it’s as high but more voluminous.

              Klyuchevskoy summit

            • That’s pretty impressive. Where’s me calculator? Boris was talking about something like 70 hours aggregate for the New SE crater. I imagine Kluichevskoya was going at it non-stop for over a week… (talking off the top of my head here, please correct or decapitate me as you see fit)

            • We had an interesting conversation this morning 🙂 The cinder cone according to the latest information would have a diameter of 50 meters :
              The picture comes from the last visit to the top end of August :
              This activity is similar to that of 2009/2010 :

              DragonEdit: Saved from the Dungeons. I think the problem was to many links, 4 or above normaly dungeonizes people.

            • Hi Shérine,
              was that over on FB? If those figures are correct then I guess the new SE crater wins on points as it is 150m in height and given a slope of roughly 45° that means its diameter is over 300m and it supposedly did this in an aggregate of 70 hours eruptive activity. Nevertheless, the activity at Kluyschevskoya goes to show how quickly a volcano can grow, even when it is already as big as Kluyschevskoya already is. I wonder how they both stack up against Bagana in the Solomons:

            • 50 m in diameter? That figure is incorrect. Comparing it to the largest fire fountains that were given as being 300 m in height, the new cone is at least 300m in diameter and stands about 80-100 m above the crater rim. Considering it grew inside the summit crater and has – to judge by the latest picture – completely filled the eastern rim, it cannot be less than 150 m in height. Who ever gave the figure of 50 m is sadly misinformed. Heck, with a prominence of 4,649 m, you wouldn’t be able to see it if it was only 50 m high, let alone a mere wart 50 m in diameter.

            • hmm.. where’s the volcanologist on the ground when you need him/her? Kind of hard to tell. Resorting to Google Earth gives us this:

              which kind of indicates that the summit crater is between 300 and 400m wide, but I don’t know when the GE picture was taken, how much has changed in the meantime, how accurate the resolution actually is, etc. etc. If it is indeed 300m wide, that was some pretty awesome fireworks there last week.

            • Playing around with GE and taking the view from the site of the webcam (30 km NNE of the cone at Klyuchi village) I think you are right. The new cone is at least 200 m wide and possibly as much as 300m. The angle from the village obscures its true height. We are looking up 5 km from just 30 km away. Here’s another Google Earth screenshot with a rough measure of the cone based on the latest webcam images:

              (apparently you need to hit the zoom button to get a higher res photo)

  11. And after weeks of trying to blame their plate tectonics on oil and construction companies the Romanians got a large earthquake outside of the Galati area. Some of you might remember that I wrote a commet on the Galatian swarm being fairly normal for the region a few days ago.
    Now there has been a M5.4 up in the Lopatari, about 75 kilometers away from the swarm. Both the earthquake and the swarm are normal for the country regardless of what the media write about it, and even if the M5.4 is larger than normal, it is far from uncommon in that area.

  12. Reply to Talla from the last comments page. Many thanks for your enquiry, the op went well on my eyes, apart from one small detail. The eye surgeon forgot to put the local anaesthetic into the left eyelid before he started to use the electric cauterising thingumybob!!! Made me jump a bit! 😉 Now just a case of waiting for all the swelling and bruising and stinging to subside. Today is the first day since Wednesday that the eyes have felt half comfortable. All caused by a local doctor not noticing the thyroid had gone over active 6 years ago and causing thyroid eye disease. 😦

  13. And in Iceland something seems to be brewing under Vatnajökull. My guess is that water is moving, but it could really be anything.
    Look at the Husbondi (HUS), Karasker (KSK) and Kaflafell (KAL).
    Take a look and say what you think it could be.

  14. I just checked the Sakurajima web cam, the last saved still was captured at 07:07. It looked like lava spurting out of an ash cloud at the very top left of the picture. I was surprised at how high up the lava was and how far it was away from the volcano – toward the left. I took a picture with my phone but it didn’t turn out so great.

  15. Here some geologist’s jokes to wish you a good start into the week:

    How do we call it when a beer is spilling over / foaming? A beeroclastic flow.

    A trilobite meets an ammonite at the permo-trias boundary. Both dead.

  16. “Where I live it is the National Cinnamon Bun Day, and I am making the best out of that. Try some with the weekly volcanic riddles.”

    I’ve tried my hand at various breads. It’s never a pretty sight. But my failures do remind me of an article that was linked over at Eruptions a couple of years ago… about bread… and magma… and degassing rates.

  17. Hi

    as there were 2 small 2.2 and 2.4 quakes in El Hierro (both felt) yesterday here is the update on the situation.

    The video covers a date span from September 1st to October 7th.

    The black circles are events for June, July and August 2013. Size for these quakes is divided by 2.

    On the first part there is an event by event animation, showing the date (look up the left scale of the colorbar for quakes’ color).

    The terrain color refers to elevation (see right scale on the colorbar).

    In the title you can see the current rank of the event vs Total, the day and time of the day, and finally the magnitude.

    Circle size is proportional to event magnitude (4 times for the current event relative to older events).

    The view is from the south.

    The second,third and fourth parts are day by day earthquakes animation. Date is shown on the title bar, views are from the East then from the South and finally from the south East.

    The fifth part is a rotation of all the earthquakes.

    The sixth and seventh parts are a rotation to a top view showing all quakes and back.

    The blue mesh is the bathymetry around the island.

    The last part is a zoom centered on the last event. I have changed the limits to get a wider view compared to the other sequences.

    There are still the 2 clusters, one located under El Pozo/ Sabinosa and the other more to the east of that under El Golfo and to the west of Frontera.

    Nearly all the stronger quakes (about 2-2.1 mag) are located under the El Golfo/ zone. The second cluster (the more to the east) is the more active.

    The “mini swarm” of September 30 shows quite well.

    I have added the 2 quakes of mag 2.2 and 2.4 which happenned on the 6th and were felt (see arrows).
    one is under the top of the island near Montana Colorada, the other is more near El Golfo close to the sea.

    Data from IGN and NOAA, made with Gnu Octave (Linux version) and avconv.

    • Hello DFM!
      Someone at IMO is diligently hand-checking the earthquakes, and I guess that will also change the Svenni-listi. If so I guess that a new plot would give a more defined wedge. I do though not when that someone will be done with this rather daunting task.

      • Hi Carl

        I’m using the “listi” file. So there were about maybe 30 quakes for all Iceland since the 5th. I think I’ll wait a bit, then redo the plot. I’ll check then if there are differences between the 2 files.

        • There should be… I am watching as earthquake after earthquake get the 99-rating.
          New post will be up in a little while…

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