Video of the sixth eruption, from the Alaska Volcano observatory webcam system. (h/t to Ron De Haan)
There is sound in this video.
As first noticed by WUWT commenter Crosspatch last night, from seismic data, it appears Mt. Redoubt has erupted:
Crossptach at 9:41pm
Looking at this Redoubt webicorder it looks like an eruption of some sort might have started at around 2045UTC. It’s dark there now, so we won’t know until morning.
Image above h/t to The Volcansim Blog
Because the eruptions happened at night, so far we don’t have any current photography. Hopefully soon. The radar image above shows the plume clearly though. Here is a 40 frame loop showing the eruptions. (h/t Tom Woods) – Anthony
Noon Update: The most recent volcanic ash advisory from Anchorage VAAC, issued at 17:25 GMT (09:25 local time) gives the plume altitude as FL600, which is 60000 feet ot 18 kilometers (h/t to The Volcansim Blog )
FoxNews: Alaska’s Mt. Redoubt volcano erupted late [Sunday and early Monday] in “four large explosions,” sending an ash plume an estimated 9 miles into the air, the Alaska Volcano Observatory reported.
“The ash cloud went to 50,000 feet, and it’s currently drifting toward the north, northeast,” said Janet Schaefer, a geologist with the Alaska Volcano Observatory.
Geologists at the observatory say the volcano, located 100 miles southwest of Anchorage, erupted four times, from 10:30 p.m. to 1:40 a.m. local time.
“This is a fairly large eruption, close to the larger cities in Alaska,” Geophysicist John Power said.
The current wind patterns are taking the ash cloud away from Anchorage and instead heading toward Willow and Talkneetna, two communities near Mount McKinley, North America’s largest mountain in Denali National Park.
Robert Bateman (09:10:07) :
Pat (00:08:52) :
“They” also consider spiking dormant volcanoes with nukes to get them ’started’.
Fallout might be a problem. It would be better to use something non-toxic as a provocation. How about a non-virgin down the chute?
Ohioholic (20:00:18) said: “Has the Catlin team not taken any measurements yet?”
Are you wondering if they took them before they left?
New footage about Redoubt, images from helicopter flight:
ftp://ftpext.usgs.gov/pub/wr/ak/anchorage/Parker/20090323_Redoubt_Media.wmv
Yesterday afternoon I flew back to Anchorage from the Arctic coast (very happy to do so, as the flights Monday were cancelled, after being up there for a couple weeks this time of year the thought of a couple more days is not encouraging). As we were passing over the Alaska Range, a strong sulfuric smell was noticed by everyone in the cabin. Most folks blamed their seatmates and reached for the air nozzle overhead to open it wide.
The captain came on after a minute or two of our sufferings to tell us that other aircraft in the vicinity reported the same smell. We passed through it in about 5 minutes. There was no ash in the area, but lots of sulfur…air currents are mighty curious things.
And to stir the pot with a weather anecdote: we had 8 days in a row with temps below -35F for part of the day. That’s the temp at which heavy equipment is shut down, and most outside work suspended. So called “normal” temps for this time of year are around -5F highs and -15F lows.
Nice posting on magma from Redoubt from Erik Klemetti,
http://scienceblogs.com/eruptions/
Redoubt sets a pattern and how to tell if you have juvenile magma in your eruption?
The USGS weekly report on volcanic activity is out:
http://www.volcano.si.edu/reports/usgs/
It has been a busy week with Redoubt, Tonga and many other active volcano’s.
We also saw a major 7.9 quake in the Tonga region! http://www.iris.edu/seismon/
The Dalton an Maunder Minimum have been characterized by a solar minimum that coincided with high volcanic activity.
Prepare for a continuation of red sunsets due to the SO2 released by the volcano’s.
These are interesting times!
Last year some one posted a link to a study showing a correlation with volcanic activity and solar activity. Any one know the paper? Thanks.
Redoubt returned from Red to Orange:
http://scienceblogs.com/eruptions/2009/03/redoubt_status_returned_to_ora.php
Redoubt explodes again, very violently this time, Code Red and memission cloud at 65000 ft.
Drift River oil terminal vs Redoubt volcano:
http://volcanism.wordpress.com/2009/03/26/drift-river-oil-terminal-vs-the-volcano/
SO2 images.
If this volcano isn’t done yet, could put a bit more up in the stratosphere. Wonder how it’ll effect the Spring, early Summer months.
Mar 23-25
http://so2.umbc.edu/omi/pix/special/2009/redoubt/redoubt_0309.php
Mar 26 over Alaska.
http://so2.umbc.edu/omi/pix/daily/0309/loopall.php?yr=09&mo=03&dy=26&bn=alaska
Mar 27 over US & Canada.
http://satepsanone.nesdis.noaa.gov/pub/OMI/OMISO2/blowup_drag_NH.html
Redoubt is back to red status
http://volcano.wr.usgs.gov/activity/status.php
Larry
This news on the volcanism blog today:
http://volcanism.wordpress.com/category/volcanoes/redoubt/
aaron,
I’m not sure if this is the paper you are looking for but Laurence Kirk (22:47:37) : above references to a decent paper on this. Im not sure if you saw it earlier, I missed it the first time through. If you or others find other decent papers I’m also interested in learning (No numerology, prime numbers or not, please!).
APE
Eruption continues: http://volcanism.wordpress.com/
Gareloi Volcano has erupted too.
And looking at the webicorder data it’s a huge eruption.
http://www.avo.alaska.edu/webicorders/Gareloi/GAEA_EHZ_AV.php
“The 2009 eruption of Redoubt Volcano, which began on March 22 at 22:38 AKDT (6:38 UTC March 23), continues. The eruption has been characterized by powerful ash explosions, with the resulting plumes reaching between 30,000 to 60,000 feet above sea level. In all, the Alaska Volcano Observatory (AVO) has observed 11 major explosive events over the last week.”
All of these big eruptions are putting out SO2 clouds. Continuing eruptions will have some effect for the upcoming months on the N. Hemisphere’s climate. Aerosol content in the stratosphere will be a bit higher, and with a quieter Sun, that should make for an interesting couple months, or so. Especially with negative PDO, and La Nina to neutral ENSO conditions persisting.
Not much sign of the plume in the recent sat. photos:
http://rapidfire.sci.gsfc.nasa.gov/realtime/single.php?2009087/crefl1_143.A2009087221500-2009087222000.2km.jpg
See top rh corner.
An impressive time lapse video of Redoubt is published at http://volcanism.wordpress.com/
A video showing the SO2 clouds of Redoubt transported over the Atlantic can be viewed at Spaceweather.com.
We need to find a way to put a carbon tax on mother nature, seriously. Do you realize that there is millions of times more carbon put out by mother nature every day than man? All of that undersea geothermal activity needs to come to a stop. It is irresponsible of mother nature to put out the levels of carbon she is putting out. Our lives are at stake here for pete’s sake!
i am not alaska but im realy keen know of what impact is this erruption had in alaska.
thanks