Stratovolcano

Eruptions

Category archives for Stratovolcano

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 caused by the ash fall. Alaska…

Redoubt status returned to Orange

Image courtesy of AVO/USGS. Taken by Cyrus Read Based on the current levels of seismicity over the past 36 hours, AVO has returned Redoubt to Orange/Watch status from Red/Warning. This doesn’t mean that the eruption is over, just that things have settled down a bit. Flights to and from Anchorage have resumed as well. You…

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 types of explosions…

Image by AVO/USGS/Game McGimsey, March 23, 2009 Redoubt has simmered down some today with no new eruptions since yesterday evening. AVO’s field crew not only fixed the Hut webcam, but also spotted massive lahar deposits (see above) in the Drift River valley that traveled 35 kilometers downstream and have officials on local and national levels…

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…

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…

The Anchorage Daily News has a report that 16 Alaskan representatives got stuck in Anchorage after the eruption started. They were headed to Juneau to vote on Alaska accepting stimulus money (“volcano monitoring” anyone?), but they were on one of the many flights canceled by Alaska Airlines today due to the ash. ADN also have…

Redoubt Eruption Round Up

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 NNE and W –…

Redoubt Erupts!

Mt. Redoubt in March 2009, prior to erupting At ~10:30 PM (Alaskan Time) last night, Mt. Redoubt erupted. AVO and the Anchorage VAAC issued a Red Alert for ash as high as 50,000 feet (15,000 meters) around the volcano. Information is scarce about the exact nature of the ash cloud because of the fact that…

Redoubt back to Yellow Alert

Image from AVO Hut webcam for Redoubt After an exciting few days … well, OK … after an exciting few hours on Sunday, AVO has decided to lower the alert level at Redoubt in Alaska to Yellow/Advisory. The alert level was lowered last week after seismicity at the volcano returned to normal after weeks of…