New images from the Redoubt Eruption

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 River valley. Most of the images show a lot of meltwater mudflows and tephra deposits on the slopes of the volcano. They've also added images from satellite and radar sources that show the initial dispersal of ash from the eruptions throughout the area north of Redoubt.

Eruptions reader Akira Shirakawa has put together an excellent (and I mean excellent) video montage of images from the Hut camera (which, bizarrely, came back to like spontaneously yesterday), with a soundtrack of "converted digital seismic traces". It captures the sixth explosion that occurred yesterday (3/23) evening.

AVO's current Redoubt information reports that the seismicity is still the same as the last few days, suggesting magma is still on the move into the upper parts of the volcano. Ash advisories posted after yesterday evening's eruption has been canceled, so now we just wait and watch for more of these explosions that have been producing 50,000 foot / 15,000 meter ash columns and depositing fine ash around the region (typical activity for Redoubt). If these eruptions are similar to 1989-1990, we should expect some dome growth in the following weeks/months.

In some of the "day after" news, the brunt of the ash fall from yesterday's eruption hit the town of Skwentna (70 miles NW of Anchorage) and left Anchorage, Wasilla and other population centers virtually untouched - other than canceled flights. You can see some of the regional ash effects in this AP video. Sounds like some people had to be rescued after getting trapped in the ash fall on Mt. McKinley/Denali. And really, there is nothing like a good volcanic eruption to get people talking "earth science funding". I think it is safe to say that Redoubt caught few people truly "by surprise" with its eruption, leading to very little drama on the human side of the volcano mitigation equation.

More like this

Image courtesy of AVO/USGS by Game McGimsey Following the provided script, Redoubt erupted again last night, producing a 32,000 foot / 10,000 meter ash column that prompted a new ash fall warning for the Kenai Peninsula area. Thus far, though, there have been few reports of major damage being…
Redoubt seems to be setting its pattern for this part of the new eruptive period. There was another small explosion this morning that produced at 15,000 foot / 5,000 meter ash column that moved to the NNW. The seismicity has settled down since the early morning eruption today (3/25) as well. These…
Redoubt on 3/15/2009, from Eagle River overlooking Anchorage. Photo courtesy of Calvin Hall I'm breaking this out of the comments of the "Redoubt Erupts!" post just to keep things up-to-date. As of now, we know: At least 5 explosions have occurred as part of the eruption Ash has drifted to the…
Image courtesy of AVO/USGS by Tricia Joy Sadler. Taken 3/28/2009 at 3:29 PM Redoubt did not stray from its pattern of explosive eruptions producing >20,000 foot / 10,000 meter ash columns over the weekend. However, what did change was the wind, and because of that, Anchorage began to feel the…

The 'AP video' link address is doubled up. UPDATE: I fixed it - ek, sorry!

The camera didn't come back to life spontaneously. It was fixed by a field crew. Your tax dollars at work.

By andyandesite (not verified) on 24 Mar 2009 #permalink

Well hello there Andy Andesite. Sorry to slight the field crew! I just went with the (now obvious) joke left on the Hut Webcam page this morning that mentioned the webcam had started working "spontaneously" last night at 6:30. I fell for it, sorry! Thanks to the AVO field crew for keeping this resource running through thick and thin.