The Sciences

Dome grows, waiting continues at Redoubt

Rocky Planet iconRocky PlanetBy Erik KlemettiMay 31, 2009 12:50 PM

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Redoubt steaming away on May 4, 2009. Image courtesy of AVO/USGS

Fairly quiet weekend (except for the start of the College World Series regionals ... I do have a favored team*), volcanically speaking, but the ever-vigilant folks up in Alaska are keeping an eye on Redoubt as the eruption of 2009 continues.

The weekly status (released 5/29) for Redoubt released by AVO has no big surprises, reporting that "small discrete earthquakes and rockfall signals in the summit region have been recorded steadily over the course of the past week. In other words, the dome continues to extrude and part of it roll down the volcano. The lava dome is still growing (lots of impressive images on the AVO website), mostly extending slowly down the steep north slope of the volcano (see image below). There is still the strong possibly that the dome will catastrophically collapse causing a pyroclastic flow and potentially a plinian eruption to follow as the pressure is released, but so far, nothing of the sort has occurred. However, the dome is unstable (says Allison Payne of AVO), so a collapse might happen at any moment. Until then, most Alaskans just hope that Redoubt behaves itself during the lucrative tourist season in the state after the lost revenue from the Cook Inlet oil production.

The 2009 dome on Mt. Redoubt, Alaska in late May 2009. Image courtesy of AVO/USGS.

* of course, since I wrote this, they were eliminated. Bah!

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