Cities on Volcanoes 6 Update - Day 1


This week is the Cities on Volcanoes conference - now in its sixth iteration. This year the conference is in Tenerife in the Canary Islands and while I wish I could be there, I'm not. However, we can all live vicariously through Dr. David Calvo, who will be sending daily updates from the meeting. He's been busy with the usual first day activities of someone helping run a meeting, but here is his first blurb from Tenerife:

CitiesonVolcanoes6 started just today at Puerto de la Cruz (Tenerife, Spain), and right now more than 700 people are sharing their knowledge about volcanism and volcanic hazard management. Eruptions blog is there to bring the latest news on this huge event. Interesting opening session today, with special focus on Canary Islands volcanism. Plenary talks form Hans Ulrich-Schminke, Carmen Romero, Mercedes Ferrer and Ray Cas talking about the origin of the islands, historical volcanism, giant landslides (remember that mega tsunami form La Palma?) and explosive volcanism respectively. 52 countries are represented in this conference, and also different technological advances are shown here. But the most amazing and fascinating section, "Volcanoes for fun", where hundreds of students from 3 to 12 years have shown what they think a volcano looks like. Sculptures, paints and much more in this fantastic volcanic week at Tenerife, home of Teide volcano. In the next posts we will give further information on different talks, posters and volcanic discussions. Stay tuned!!!

All week look for updates from COV6 here on Eruptions!

Teide volcano in Tenerife in the Canary Islands.

More like this

Still working through the web page..but I must admit the hairs on my neck stood on end when I saw that one of the committee was one David Johnston...creepy in the extreme until I noticed that THIS David Johnston is a Kiwi

The idea of using various EM techniques for forecasting is something new to me; sounds interesting

6.6 quake...Andaman Sea..Tsunami?


* Monday, May 31, 2010 at 19:51:48 UTC
* Tuesday, June 01, 2010 at 01:21:48 AM at epicenter
* Time of Earthquake in other Time Zones

Location11.119°N, 93.698°E
Depth127.7 km (79.4 miles)
Distances120 km (75 miles) ESE of Port Blair, Andaman Islands, India
350 km (220 miles) N of Mohean, Nicobar Islands, India
795 km (495 miles) WSW of BANGKOK, Thailand
2580 km (1610 miles) SE of NEW DELHI, Delhi, India
Location Uncertaintyhorizontal +/- 9.8 km (6.1 miles); depth +/- 18.8 km (11.7 miles)
ParametersNST= 56, Nph= 56, Dmin=743.3 km, Rmss=1.46 sec, Gp= 58°,
M-type=teleseismic moment magnitude (Mw), Version=6


Event IDus2010wybl

By M. Randolph Kruger (not verified) on 31 May 2010 #permalink

This is mainly for the hard core enthusiasts.

I took the data from (all regions tab) and split it off into 15 minute chunks, converting the magnitudes over to Joules, then summing the energy for each time slice. The red line is a central moving average covering a 24 hour window sliding from 04/17/10 until now.


#3 Thank you @Lurking. These your graphs sort of keep us "in touch" with Earth's inner deeds. Waiting for more.

By Renato I Silveira (not verified) on 31 May 2010 #permalink

crap lirk you sld send that to the I-Met

By M. Randolph Kruger (not verified) on 31 May 2010 #permalink

@Lurking 3 - ha - nice graph, even for the not hard core who barley know how to read a graph sorta puts things in perspective - average can be all over the place, doesn't necessarily mean something is about to happen - wonder if there's a way to do the same thing leading up to Eyja's eruption - would be interesting to see how the line looked then...

By birdseyeUSA (not verified) on 31 May 2010 #permalink

Not quite yet, MRK.

Lurking, would you be able to overlay graphics from another plot onto yours (post #3)?

I will supply the plotted data website.

If you are game, you may find the correlation to your EQ-15 min walking average pattern be...arresting.


On 2D plots I can put an image in the background, you've seen how that comes out. I did an experiment last night with overlaying multiple hurricane wind-speed adjustment traces and a plot of the mass of one cubic meter airmass as a function of altitude, that one came out nice. The caveat was that I had to render each trace in Dplot then copy the data across the other plot. An alternate method of collating curves is to match the scales and then merge them in some sort of paint program (I use Paint Shop pro v8.0... all because Corel trashed the later versions)

@ Birdseye, I have one of those for Eyj, but I have to go back through the data to make sure it all calculated correctly. There are a lot of data drop outs that I have to account for in the trace.

I don't know about anyone else but now when I read here, I don't know which thread is current and whether that particular thread and its posts are about Guatemala or the shameless book plug or Marianas or Cities on Volanoes 6 or Eyjafjallajokull or Ecuador or Yasur or Pacaya or Katla. )-:


By Princess Frito (not verified) on 31 May 2010 #permalink

@Lurking, keep going! :)

By Renato I Silveira (not verified) on 31 May 2010 #permalink

Eh... the holes are real. The quakes just petered out and the average dropped to nothing. Due to the central smoothing process, there are gaps.

By request, Eyjafjallajökull. Data goes back to 3/21 (when I started collecting)

It blew with a vengeance....

Kamchatkan and Northern Kuriles Volcanic Activity
Monday, May 31, 2010, 20:45 UTC (June 01, 08:45 KDT)


BEZYMIANNY VOLCANO: 55°58'N, 160°36'E; Elevation 2,895 m

Strong explosive eruption of Bezymianny volcano occurred from 12:34 till 12:50 UTC on May 31, according to seismic data. Ash fall in Kozyrevsk village is continuing. The volcano obscured by clouds.

Big ash cloud remain over Kamchatka at present (NOAA-15, 17:52 UTC on May 31, last satellite): coordinates on the south - 56.04 N, the north - 56.94 N, the east - 161.05 E and all Kamchatka to the west.

The activity of the volcano could affect international and low-flying aircraft.

By M. Randolph Kruger (not verified) on 31 May 2010 #permalink

#12-13-14: If eruptive activity doesn't cease now, my PC will go 2012! So many tabs open at a time!

By Renato I Silveira (not verified) on 31 May 2010 #permalink

I was about to summon you, Your Highness!
Chaitén has been upgraded to one of the 15 deadliest. Radiocarbons and witnesses of a huge eruption that occurred 320 years ago!

By Renato I Silveira (not verified) on 31 May 2010 #permalink

Renato, Chaitén was upgraded to the top 15 of the most active and dangerous volcanoes of... Chile.

By Guillermo (not verified) on 31 May 2010 #permalink

By the way, the link about Chaitan is a sort of pdf, so it won't work in google translate. Is there a non-pdf version? Thanks:-)

By parclair, NoCal USA (not verified) on 31 May 2010 #permalink

#20 @Guillermo :)
Que dices, hombre?! Si, verdad!
You are right! Too late now: I just spread the post in three different threads. My name is dirtier then a sinkhole. But still, it is great news.
Gracias Guillermo!
Maybe I need some rest - too many "explosive" posts here.
@All: I'm sorry for the hoax, but I promise that I'll give you a decent translation on Chaiten's article tomorrow!
@Dan, I need a Marguerita.
Good night everybody!

By Renato I Silveira (not verified) on 31 May 2010 #permalink

One of my fave webcams is the Halema'uma'u Overlook Vent at

I was watching an old Nat Geo show about the types of volcanos the other night, and they had pictures of the Erte Ale lava lake. One volcanologist said she loved watching it because it was like a speeded up version of plate tectonics-- The crust cools, sinks and the plates move. Every so often there is a flare (in my mind, like a rift eruption). You can get the same image at this cam.;-)

By parclair, NoCal USA (not verified) on 31 May 2010 #permalink

@19 Sir Renato you're forgiven. I understand there have been more than a few Margueritas passed around here, ergo the confusion.

So now I'm even more confused about which volcanoes this blog is focusing on (and which ones are hoaxes).

Can someone please lend me a quarter for the Clue Phone?

By Princess Frito (not verified) on 31 May 2010 #permalink

Well, I'm watching the ash accumulate on the Bezymianny webcam, and watching the plate tectonics demo at the Halema'uma'u cam. And following two threads, and reading about the romantic poets. I'm clueless and changeless;-)

By parclair, NoCal USA (not verified) on 31 May 2010 #permalink

Mulakot webcam: Eyjaf, as she might have been portrayed by an Old Master in tempra and oils.

Looking quite painterly in the crystal clear morning light.

For those wanting to break away from active stuff......
Iceland: The view on the Ãóró camera at the moment is breathtaking - simply beautiful. She's puffing gently into a blue sky.

By Kathryn, Australia (not verified) on 31 May 2010 #permalink

Kathryn, Australia you are right the view on both cams is great at the moment....nice steam plume....seems to be growing too.

OK now I have been busy with other stuff whats this about a hoax volcano?

There was quite a big swarm at Reykjanes peninsula yesterday (50 EQ or so around 7km deep).

Is the Brennisteinsfjöll volcano still active? I see that it has not had an eruption since the 14th century and that it is/was a fissure with several craters running NE/SW.

Is that activity normal for the area?

By Daniel, swe (not verified) on 31 May 2010 #permalink

I am getting confused with all the threads,
Where is the Iceland blog gone?

By claire uk (not verified) on 31 May 2010 #permalink

hehe, randall nix,

earth is bussy dont you think

@ 18/30/31/32



@8, 11, Lurking Thank you!! great stuff, interesting comparison.

Good morning volcanophiles all over the map!! How can we corral this? Maybe designate an Iceland thread for Ejya material? Randall Nix, go to sleep for a little while, we can't keep up ; )

By the way, all I get on the Kamchatka cam is tiny pics that won't get bigger..anyone?

And I missed Ejya's beauty last night, drat - all fog/rain/dusted-in now.

By birdseyeUSA (not verified) on 01 Jun 2010 #permalink

Since there is not much graphic material of the recent eruptions all over the globe available, I thought you'd like to see old Mamma Etna in her most glorious days - thanks to a new slides scanner I have now the possibility to make some of my best photographs shine in all their beauty. This is just the beginning, I've got to choose the best photos out of about 15,000 slides covering 15 years (1989-2004) of encounters with Etna and the other Italian volcanoes ...


Boris, thanks for the wonderful photos. I'm in anticipation of Etna now. ;-)

@37 Than you stigger - well, you're right about not seeing!

By birdseyeUSA (not verified) on 01 Jun 2010 #permalink

Next week I'm meeting someone who's presenting stuff at Teneriffe - what a hard life some scientists lead. I could have been there as well but had other commitments - way too many other commitments, and I suspect I'll have a lot more after that meeting ...

By MadScientist (not verified) on 03 Jun 2010 #permalink

Erik (or any of the professionals on here) Any updates on CoV6 yet? Any of the presentations/papers strike you as particularly interesting?