34 comments on “Eruptions continue at Colima, Mexico

  1. Thank you for the well-put together post. I hope that the local officials mitigate against further development on the southern slopes of the volcano, but as Ciudad Colima continues to grow outwardly, today’s danger will likely turn into tomorrow’s disaster.


  2. Congrets to your new nice name, dear Volcano Hotspot!
    Where can I see the other suggestions on the name? Did not klick on the working poll link, sorry. 🙂


    • I have great admiration for the people who take science to such extremes of danger to make new discoveries, I also think they are clearly mad as f**k.

      Surely once a dome is at that stage, has incandescent bits visible and unstable enough for bits to fall off, it is not a great idea to climb about on it? Or am I just boring?


      • Having seismologists and volcanologist as advisors should have made it a *relatively* safe trip… or so I hope. Still, one does not have to be the guys’ mother to worry about such a risky undertaking.- It is human nature to think wisely and act foolishly. [Anatole France]


  3. I like this illustration of the evolution of the tectonics. One of the spreading centers is near me. This illustration indicates that the Colima volcanic field is near a quadruple junction: North American Plate, Cocos, Riviera and Pacific??


    • Howdy Bill – Thanks for the illustration. It is way cool. Certainly a complex, messy junction. Would agree with at a minimum of 3 plates / platelets being involved. Also looks like a chunk of the North American Plate, the Jalisco Block is involved in the festivities as its boundaries define weak spots in the NA Plate for melt to reach the surface. (Appropriate weasel word: not an expert. Simply a hobbyist.) Cheers –


    • Thanks dfm! The thermal IR parts in the videos are pretty amazing too!
      I wonder why the surface of the island remains so flat, given that this is the tip of a volcano. Can’t believe it’s just been wave action, considering the huge amounts of rock been piled up every day? And now the waves don’t reach up any longer.


      • Actually it seems flat but it is not so

        this is a plot of the digital elevation model (a bit old I did not update it for quite a time)


  4. Phreatic activity at Ubinas (Peru) increased considerably today.
    (Image: Diaro sin Fronteras)

    (screenshot from IGP website)

    Moquegua: The volcano observatory Ingemmet (OVI) in Arequipa, through specialist Domingo Ramos, reported that the eruptive activity of the volcano crater Ubinas increased. He explained, apparently water ingress caused by heavy rains into the magma in the crater of the volcano, could be the cause, as the micro earthquakes increased from 20 to 100 per day, while the fumaroles rose from 700 meters to 900 meters high and ash remain the same the issue is considerable. Despite an eruption like the one that occurred last year is unlikely, the warning signs still continue.

    As in the case of Sabancaya, located in the province of Caylloma, fumaroles increased reaching up to 1,500 meters high, also microquakes add to 100 per day, running the risk that if the magma rises, they cannot rule out a possible volcanic eruption.



      • That is a deep focus earthquake. These are so deep that even extremely strong ones rarely cause damage. They are a bit of a scientific mystery, though, since rock at that depth should not undergo brittle failure.


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