Redoubt Hut webcam back online - and a new ash column spotted!

The Hut webcam at Redoubt that has a great view of the hydrothermal vents near the 1989-90 domes - and the area where the current eruption is likely to be sourced - is back online. So far, we can see what looks like lahar deposits on the lower left-hand flanks of the volcano in the stream channels (likely formed by the melting of the Drift Glacier) and ash deposits all over the snow. Also, depending on the light and clouds, you can definitely see an ash column coming from the volcano.

Also, AVO is reporting that at 7:41 PM (Alaska time), a new ash column was spotted on radar reaching 60,000 feet / 18,000 meters. These types of ash columns will definitely continue to snarl air traffic into and out of Anchorage (amongst other Alaskan airports). I've posted one of the current ash trajectory model from NOAA above and you can see the latest PUFF models here. You can also see the volcano's seismic trace leading up to the eruption here. Always impressive when the volcano goes "nonlinear". Sounds like the volcano monitors will finally get their kudos.

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Today looks to be a doubleheader of volcano news: Redoubt Image courtesy of AVO/USGS, taken by Rick Wessels. An infrared image of the north slope of Redoubt showing the hot, new dome material and hot block & ash flows confined to the valley. At 11:30 AM yesterday, AVO put Redoubt back to…
Image courtesy of AVO/USGS AVO has posted a series of images taken around Redoubt and around the Cook Inlet since the new eruptions started the night of March 22nd. You can begin to see the extent of the ash fall, what the explosions have done to the Drift Glacier and the new deposits in the Drift…
Photo courtesy of Calvin Hall. Taken from March 28, 2009, 50 miles from Redoubt. Redoubt continues to huff and puff, with an almost constant ash plume of ~15,000 feet / 5,000 meters. This after ~4 PM (Alaska Time), an explosion produced a 25,000 foot / 8,000 meter ash column that disrupted flights…

I made too a timelapse video of the sixth eruption/explosion with footage from the Hut webcam, but this one has sound converted from digital seismic traces of NCT and DFR seismic stations. Audio/video are synchronized (screenshots are time accurate), playing speed is 80x of realtime:

http://www.youtube.com/watch?v=sgnhpYATp1M

By SHIRAKAWA Akira (not verified) on 24 Mar 2009 #permalink