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Back again, with apologies 31 May 2009

Posted by admin in admin, miscellaneous.

What was intended to be a break of a few days has stretched to over a week, thanks to a car with recurrent mechanical difficulties* and other problems with which I will not bore you. Please accept my apologies for this service interruption: The Volcanism Blog does not like to let its loyal readers down.

I will be catching up with things as well as I can over the next few days. Thank you for your patience.

* Software difficulties, actually. Cars are too complicated these days.

The Volcanism Blog



1. Boris Behncke - 31 May 2009

luckily this was not a very exciting week, volcanically speaking … though maybe Etna’s becoming more interesting these days, because the volcano has been inflating in the past few months, and there has been an acceleration of displacement of the southeast flank with small earthquakes and structural damage to buildings standing on the active fault lines. There has furthermore been a clear increase in gas emission from the summit craters, most notably the Bocca Nuova, along with an increase in ground temperatures. And all this, while the slow emission of lava on the upper east flank – initiated on 13 May 2008 – is still going on at a very low (<<1 cubic meter per second) rate.

2. volcanism - 31 May 2009

It clearly has been a fairly slow week, volcanically speaking, which is perhaps just as well! The information about Etna is very interesting – many thanks, Boris. I’ll try to keep an eye on developments there.

3. Barb - 1 June 2009

Welcome back! Computers make our lives so wonderful…until they malfunction.

Also, Nevado del Huila had a swarm of 25 tremors on the 28th, per Ingeominas. They didn’t raise the alert level past yellow, however.

4. theroachman - 2 June 2009

It was not a very exciting week till today maybe…

From Halemaʻumaʻu Overlook Vent, Kīlauea Volcano

Not clear if that silvery stuff is lava but it sure is a major change from weeks past


5. Barb - 2 June 2009

Hi, theroachman!

That’s the lava pool down at the bottom of the Halema’uma’u vent conduit, some 330 feet. Nice webcam capture!

Today’s Kilauea update is interesting. http://volcanoes.usgs.gov/hvo/activity/kilaueastatus.php An excerpt:

“DI inflation started yesterday afternoon. Overnight, glow from the Halema`uma`u vent was the brightest yet in 2009. Lava from east rift zone vents paused and is no longer flowing through tubes nor supplying active surface flows anywhere on the TEB flow field…A brown plume was reported yesterday at 3:01 pm accompanied by a small seismic event. This event and at least two others reported over the weekend produced an increase, but still small, amount of tephra over the weekend; about a third of the material produced is fresh spatter bits…The network of tiltmeters at Kilauea’s summit recorded the start of strong DI inflation at 4:41 pm yesterday that is continuing this morning.”

I’ve been following it for a couple of years and don’t recall a time when the entire TEB flow field shut off. Maybe there is a change in K’s eruptive style coming up soon. Whatever it might be, there is still a lot of gas visible in the Pu’u ‘O’o web cam, so something is still degassing there. (All HVO’s cams may be accessed at http://hvo.wr.usgs.gov/cams/ ). Hard to guess what might happen next. It sure would be nice if we got another “fire pit” in Halema’uma’u, but I’d settle for a clear view of a lava lake in Pu’u ‘O’o again, like in 2007.

6. Stefan - 2 June 2009

I do not think that there is any need for apologies. You are offering an outstanding service here and I would like to thank you for that. Keep up the great work!

7. theroachman - 3 June 2009

Hi Barb!

I think the lava pool has risen close to 300 ft over night. It was the brightest ever on the overlook cam and you could clearly make out the lava pool. It looked larger on the cam thus my guess on the depth.

Even the cam at HVO shows the brightest glow since 2008.

8. Thomas Donlon - 4 June 2009

You’ve got a great blog. You are a very diligent blogger – and your blog is unique among the volcanic blogs in that you provide high quality translations of many Spanish reports that many of us readers would not be able to otherwise read.

And certainly Spanish South America has a large share of the worlds’ active volcanoes.

Maybe some Billionaire can drop enough money in your tip jar so you won’t have to worry car repairs!

best to you,

9. volcanism - 4 June 2009

Thanks for all the kind words about the blog. It’s great to know it is so much appreciated. Thanks, too, for the snippets of information contributed here: I’ll try to follow them up as I catch up with things.

I’m glad the translations are appreciated: so many of the world’s volcanoes are, as it were, Spanish-speaking, and don’t get well covered in the largely Anglophone global media.

Nice thought on the tip jar, Tom, but it doesn’t have to be a billionaire – a millionaire would do!

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