9 comments on “Ongoing Eruptions at Sinabung, Indonesia

  1. Thank you agimarc; Sinabung is one of those volcanoes that give you a bad conscience if you admit loving it. But you can always turn to it if you wish to see some volcanic action.

    I will be back “in business” next Monday, have a good time everyone!

    Liked by 1 person

    • Howdy Granyia –

      One of the oddities about Sinabung is its proximity to the Sinkut caldera. Folks try to tie it to the Toba system, which probably means that they don’t know about Sinkut. I can’t help but think they are related (Sinkut and Sinabung) but haven’t found anything to back up that suspicion (yet). To make things more interesting, the Sumatran Fault sits just to the south of Sinabung. It runs generally the long axis of the island. Final piece of the puzzle is the relationship of large earthquakes to volcanic activity on Sumatra. While the relationship has not been proven (at least in my mind), the sheer number of massive earthquakes (7 – 9+) in the region over time argues otherwise. Of course if you follow that bunny trail a while, you quickly get to the chicken and egg question – which comes first? The earthquake or the eruption or the earthquake?

      Take a look at the 4th image – the one of 3 kids watching a PF. It occurs to me that is a rather dangerous place to watch (too close and not far enough off the line of flow). Keep doing that and your chances of growing up decrease markedly. Cheers –


      • Um, don’t you mean the 5th image from the top? I think you have to be cautious about taking such images at face value; the foreshortening effect of telephoto lenses has to be considered; it would make the PF seem a lot closer than it actually is. Although that said I’d have been a lot happier standing to one side of the flow path rather than, apparently, right in front of it!


        • Howdy Michael – Right you are – 5th image. Picked up on the foreshortening due to the lens. What really bothered me was the line. To me it looked like they were very close to the line of flow, though it was going off a bit to the left. A little larger flow and they are toast – literally. I remember the video of Mount St. Helens PF approaching the cameraman and the PF from Unzen chasing the fire truck Jun 1991. There is a reason you don’t look down gun barrels. There is a reason you don’t play with PF’s. Eventually both reach out and touch you. Best to you and yours. Cheers –


  2. just for the pleasure.
    The Grande Soufrière on Guadeloupe island is particularly visible today.

    Image from IPGP


  3. Hi there Agimarc et al!
    Another interesting article. I have always had a bad feeling about this particular volcano, since its 2010 eruption. I can’t explain why, but I did. My layman suspicions proved to be right, although I’d rather be wrong, since this volcano has gone far beyond the fun of volcano watching. All my thoughts go to the nearby populations who are taking the full blow from its behaviour.
    And that thing of the nearby caldera is food for thought. I have always wondered if nearby Toba could have some kind of link to it – so close afterall – but you beat me to it. And with all the recent tectonic activity, I fear for the future of that whole region. Can’t tell why, but sitting on the Great Sumatran fault and two steps from a megathrust is no joke.
    Thanks. Miss you folks.
    I am particularly excited because I am leaving in a short trip to São Migel, Açores. Plenty of calderas to see… I’ll brind some pics if I can.
    Still didn’t finish my thesis and I ‘m working hard at it, so don’t expect to see me very often any soon.
    Cheers! Miss you people!


    • Hi Renato, thanks for stopping by! Have you, by any chance, booked your holiday to the Azores with Nature & Volcano Tours, the travel agency somehow connected with Georges Vitton? A couple of months ago I had contacted them about just the same, but did not book as they had only self-drive trips to offer. Have a great time there, and yes please, send us some photos if you can!

      Lagoa do Fogo (Lagoon of Fire), the crater lake within the Água de Pau Massif stratovolcano in the center of the island of São Miguel:

      Liked by 1 person

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