The VC Bar

Welcome to the Volcano Café bar, a place for all things on or off topic and inane ramblings. There has been a need of late to find a place better suited to various theories, long comments and enthusiasm. This page will be less moderated than the main article pages and cleared out every month (this may change depending on use).

Have fun and don’t forget to tip the barman 😉

2,361 thoughts on “The VC Bar

  1. Earthquake swarm in Hawaii, Ka’oiki fault zone, next to Kilauea. Tectonic as far as I can tell but being so close you never know. All about the same depth as Kilaueas magma chamber too, I wonder how the faults all connect there, or if this area is technically part of Kilaueas southwest rift just not recently active?

      • There are 2 tremors in the seismograms, but these come from the deep conduit southeast of Pahala, the first tremor has 2 automatic locations:

        M 2.4 – 7 km ESE of Pāhala, Hawaii
        2020-10-23 08:38:57 (UTC)19.188°N 155.411°W 52.2 km depth

        M 2.4 – 10 km SE of Pāhala, Hawaii
        2020-10-23 08:35:29 (UTC)19.131°N 155.421°W 41.1 km depth

  2. What if you fell into gas giant Jupiter?
    The reality is very disturbing! under Jupiters clouds is a dark bottomless pit with ever increasing pressure and temperatures. Quite a ride into Jupiters boiling interior. Jupiters deep interior is hot liquid hydrogen. I wonder what depth the atmosphere starts to glow red. And perhaps there are sillicate clouds in Jupiters hotter depths?
    You fall and fall until you are crushed into this pit. Galileo Atmospheric probe carried No camera sadely, so we never knows what it see during that afternoon it fell into Jupiter.

    Jupiters clouds upclose probaly are very similar to earths, when you fly an aircraft here. Cumulus clouds are common on Jupiter. But these CB goes up 70 kilometers on Jupiter and huge storm anvils. Mammatus evening skies are probaly spectacular on Jupiter.
    The air between the cloud decks are probaly quite clear.

    Jupiters cloud free dry zones
    (”hotspot”)are probaly a clear blue dayskies over a dark hazy pit, but perhaps similar looking as when you earths shadow from above when you sit in an aircraft and looking into the approaching evening night darkness

    Links here

    • A very strange world
      Jupiter haves rainfall, but the rain falls into the bottomless abyss. Rain and hailstones falling into the pit, where they evaporate in the hot depths and rise up to become clouds again in an endless cycle.

    • Nothing else stranger than than these gas giant planets. There is no boundary to run into, no solid surface. Just a crushing hot abyss under the clouds.
      Far below Jupiters clouds, the pressure makes the atmosphere into a very hot liquid hydrogen sea. Temperatures and pressures gets to the point so the atoms falls apart. Almost like the interior of a star. Deep inside Jupiter the liquid hydrogen becomes metallic liquid hydrogen under immense pressures and heat.

    • It absoutley sucks that a camera was not included on the Galileo Atmospheric probe
      Something that was possible even back then with late 1980 s technology.

      We will never know what it saw
      But it was a relatively clear region it went down in.
      So yes really a bottomless pit

      • IIRC, issues were mass, power and band-width. Radiation hardening was mentioned, too. Now that even shoe-box cube-sats often carry a suite of web-cams in addition to ‘proper’ optics, ’tis just a matter of getting probe to Jupiter within decade of launch…

        Speaking of missed opportunities, remember the Giotto probe skimming Halley’s Comet ? IIRC, the design team went for active re-alignment should minor impacts knock the probe skew. But, the ‘debris field’ was much, much bigger and denser than anticipated, such the active system could not keep up. Had they fitted a less powerful active system plus a passive, tri-axial dampers set, literally big ball-bearings in oil-filled tubes, they’d have gleaned much more data…

          • Sealed tubes, suitable silicone oil. There’s several commercial brands with pour-points down to -100ºC ( circa 170 K) for cryo-circulators, and custom aerospace varieties have been used in satellites’ passive dampers etc since 1960s….

            Nice feature of such widgets is being completely sealed units with just a couple of mounting lugs. In fact, IIRC, tubular types may form part of the load-bearing frame, reducing mass & volume budgets…

            And, yes, I, too did a ‘Huh ??’ when I first heard of such…

          • -100 C is not low enough for deep space. Remember that at the distance of Jupiter, the solar heating is 25 times less than in earth orbit. Craft cruising in deep space when hibernating go colder than that. Reading some documents, radiation damage and outgassing is also a problem. But it is used in the ISS cooling system which I did not know.

  3. Since volcanoes are stuck in limbo, Let’s play a game…
    It’s called guess the volcano.
    You know my shadow but you don’t know me
    You know my wrath but you don’t see me
    From a neglected period I exploded.
    Who am I?

  4. Feels like Grimsvötn is going to erupt at anytime now! magmatic inflation is the highest .. possible higher since 1870 s big event.

    • Are you referring to anything (a plot or announcement) in particular?

      Earthquake activity has bee low in recent months. In the 2011 eruption, it took a minimum of 5 months to get from the present level of unrest to the eruption. Of course nothing repeats exactly, and a jokulhaup now could have consequences.

    • IMO reported large gas releases and inflation that breaks previous 2011 s levels 🤷‍♂️They told that months ago.
      The sulfur output they described as ”very large”

      • ok! Not much has happened since though. Everything points at an eruption coming. But nothing points at it being imminent, I think.

    • The very large sulfur release and rapidly increasing geothermal activity at south caldera rim, is a sign that magma is very very shallow in Grimsvötn now. The shallow magma chamber in Grimsvötn is only 1600 meters below the caldera floor. The large sulfur emissions are signs that magma maybe only a few 100 meters down now, as sulfur bubbles out shallow.

      Its my 25 Birthday in 2 days
      So I wants Iceland to produce something larger than
      Siberian Traps for me it must be done: It MUST happen,
      if not I will fly. As addicted to volcanoes as I am.. someday there MAYBE be a traps for me. At least a Birthday candle will grow out in Grimsvötn.
      Aaaa cannot wait to see something MUCH larger than Holuhraun : ) Im so addicted.

      Just kidding with wanting to flood the world with magma

  5. Introducing Sub – Antartic Penguins to Iceland?

    King pengiuns and macaroni pengiuns will thrive in Icelands cool mild subpolar oceanic climate, with very plentiful Atlantic of fishing. King Pengiuns will love Icelands cool mild oceanic climate. They coud form huge colonies along Icelands coasts.

    Penguins the ( more northen
    Sub – Antartic variants ) will thrive in Iceland: I wants a colony of them in Westman Islands as well as westfjords.
    They coud thrive in Iceland, thats very much like Falklands Islands and South Georgia in climate.

    But introducing King pengiuns to Iceland is a very bad idea? : )

Leave a Reply to Jesper Sandberg Cancel reply