Earth Matters

Parade of Volcanoes

January 17th, 2012 by jallen

It’s been a really active time for the Earth Observatory and volcanoes. In the past three weeks, we’ve posted images of a night-time eruption of Shiveluch, ongoing activity at Puyehue–Cordón Caulle, daytime activity at the Kizimen Volcano, and my own favorite, a brand new island in the Red Sea. And those are just the images we published!

In recent weeks, we had a good shot of activity at Kilauea, but we skipped it since it only had Halema’uma’u activity — which is much like previous images and not the new ocean entry point, which we’ve yet to glimpse in cloud-free satellite imagery. We received an excellent ALI scene of the submarine El Hierro volcano (which we published) and then the next day we received an image of the same volcano from Landsat 7  (which effectively got scooped by ALI).

Another of the moderately recent and interesting images of volcanoes we didn’t use is a very nice ALI shot of the Cerro Hudson volcano in Chile.

We do have a good reason for not using the image. Notice the volcanic activity? Yeah, we didn’t see anything either. What makes this image interesting (to me anyway) is that just two weeks earlier, it looked like this:

We did publish that one. There’s actually not much in the way of activity in that one either, but in the published image, you can see a lot of ash that’s fallen on the ground from activity in October at the volcano.

Just two weeks later, with no new activity, almost all the ashfall seems to have “disappeared.” Fresh snow fell and covered much of it. Also, we got a much better shot with ALI of the volcano, getting a very nice view of the entire caldera, the glacier draining it out of the northeast, and forests in the alpine valleys. The ashfall was nowhere near as extensive and damaging as the Puyehue eruption, which at one point spewed out ash that circled the globe.

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4 Responses to “Parade of Volcanoes”

  1. jorge says:

    !!! Hola !!!, con un saludo y mi agradecimiento por el gran conocimiento que me han permitido obtener a traves de este extraordinario lugar, me guataria obtener informacion sobre los volcanes de Mexico, agradeciendoles de antemano.

  2. Spencer D says:

    It’s always nice to see fantastic volcano photos. The night-time eruption of Shiveluch is equally as amazing. I am glad to see that recently a lot of the ash has cleared up.

  3. Rattan says:

    Amazing pictures! Kudos Cerro Hudson.
    Could you post any info about Stromboli volcano (Eolian Islands, Italy)?

  4. Fachwerkhaus Lippe says:

    Really nice pictures! It looks like the ash has cleared up, but it must be somewhere. Is the ash buried under the snow, or is it blown in our atmosphere?