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Dome growth at Redoubt? 31 March 2009

Posted by admin in activity reports, Alaska, eruptions, Redoubt, United States.
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Redoubt 30 March 2009 (photographer Heather Bleick, image courtesy AVO/USGS)
Photograph taken during AVO observation and gas data collection flight on 30 March 2009, showing north flank of Redoubt (photographer Heather Bleick, image courtesy AVO/USGS). [source]

The Alaska Volcano Observatory has issued a new update (2009-03-31 00:25:02), which reads as follows:

At 23:26 AKDT Redoubt sent an ash plume to 25,000 ft asl. The plume headed east and dissipated over Cook Inlet. Strong thermal anomalies suggest a fresh dome is growing at the surface.

There has been some earlier talk of dome growth during the current eruption: ‘Redoubt lava dome could trigger eruption’ (KTUU, 24 March 2009). This would be in line with what has happened in the past. The repeated extrusion and explosive destruction of lava domes has been a feature of Redoubt’s previous activity: see the reports for December 1989 to February 1990 at the Global Volcanism Program Redoubt Monthly Reports page.

For all our Redoubt coverage: Redoubt « The Volcanism Blog.

Information
Global Volcanism Program: Redoubt – summary information for Redoubt (1103-03-)
Alaska Volcano Observatory – Redoubt – AVO information and updates for Redoubt
Alaska Volcano Observatory – main page for the AVO

The Volcanism Blog