USGS/SI Weekly Volcanic Activity Report for May 12-18, 2010

The latest Weekly Volcanic Activity Report from our friends at the Smithsonian Global Volcanism Program and the USGS.

Highlights (not including Eyjafjallajökull - you can check the latest IMO update on that eruption and the latest VAAC ash advisories.):

  • Villarrica in Chile was raised from Alert Level 1 to 2 by the Chilean SERNAGEOMIN after an increase in seismicity, a rise in the lava lake levels at the summit and more vigorous fumarolic activity.
  • In the first update in a while, a small ash plume was noticed at Chaiten in Chile, rising to ~1.8 km (8,000 feet) from the new domes.
  • Karymsky in Russia continues to produce ash plumes that reach as high as 4.6 km (15,000 feet) along with a thermal anomaly at the summit for several days.
  • Costa Rica's Turrialba continues to emit volcanic gases from the fissures that opened at the beginning of 2010.

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Sally Sennert from the Smithsonian Institution sent me an email to say that this week's USGS/Smithsonian Institute Weekly Volcanic Report will be delayed due to the inclement weather in the Washington DC area. She can't connect with the server, so the report can't be updated on the Smithsonian…
Grading grading grading! A webcam capture of the eruptive plume from Eyjafjallajökull on the morning of May 6, 2010. News: A quick update on the Eyjafjallajökull eruption: The volcano has been producing an impressive ash plume over the last day (see image above). The current ash plume is…

Since the volcano tremor started to drop I have been recording a series of pules. I don't know at the moment if they are long period volcano type earthquakes or not.

But these events are not human made I think and they appears to be increasing in frequency it seems.

@Jón FrÃmann: that seems interesting. I wonder what's going on.
Would you mind posting again some samples in SAC format? Just for personal curiosity, even knowing the limitations of the instrument you're using compared to a more expensive seismometer.

@Jón F - did you mean to post#2&3 on the Eyja page instead of here? I found the second video and your comment on tremor by accident...please share if that was your intent! Ditto Mr. Moho.

By birdseyeUSA (not verified) on 20 May 2010 #permalink

@Mr. Moho, you can find the files at www.jonfr.com/sac , no rar file this time around.

@birdseyeUSA, No I planned to place it here. Maybe it was a mistake. But the other thread has gone quite long. But I am going to put the link there now. :)

What link are people using for THEY? The link I bookmarked doesn't take me to the page I remember, which was a stack of line graphs for each of four or five GPS locations, including GOD. (That's the only one I remember.) Now I can only seem to find individual pages for two of the locations. Anyone? Thanks.

By Carla - Seattle (not verified) on 20 May 2010 #permalink

@6: thanks for sharing!

frir showing renewed activity

flir sorry for fat fingers

I find it amazing how much the ash in the air is a effective IR filter in many ways better than a bit of fog
a nice north wind in desirable

@Gina, @Henrik - thanks. I've got those already. I forgot that the dashboard page has a THEY chart, though. Appreciate the links.

By Carla - Seattle (not verified) on 21 May 2010 #permalink

The USGSSI Weekly has always seemed to me like a poor way to monitor new and ongoing volcanic activity. Something like the old expression about things being 'a day late and a dollar short' comes to mind. Would really appreciate knowning if there isn't a better, 'official' (or university) website that gives volcanic activity reports as they occure. If we can monitor worldwide seismic activity by the minute, where's the worlwide volcanic activity monitoring 'by the minute'?