Mount St. Helens: Instrumentation and Dome Growth, Oct-Nov, 2004

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Detailed Description

On October 11, 2004, spines of solid, but still hot, lava punctured the surface of the deformed glacier, initiating a new dome-building phase of activity in the crater of Mount St. Helens. By late October, a larger whaleback-shaped extrusion of solid lava (called a spine) emerged from the crater floor. During the 3+ years of the eruption a series of hot, solid, smooth-sided lava spines rose from the vent, bulldozed their way across the crater floor, and piled up to form a new lava dome 460 m (1,500 ft) high. This video shows deployment of a monitoring ""spider"" to track seismic activity and surface deformation, FLIR thermal imaging of the new spine, and aerial overflights of the growing lava dome from October 24 to November 12, 2004.

  1. Sling Deployment of GPS Instrument (MID9) onto NE Extent of Deformed Area; October 24, 2004 (00:13)
  2. Instrument Site at September Lobe on 1980-86 Dome; November 4, 2004 (03:29)
  3. 2004 Dome and Surrounding Area of Deformation; November 4, 2004 (04:04)
  4. Forward Looking Infrared (FLIR) Thermal Imaging of 2004 Dome and Surrounding Area of Deformation; November 4, 2004 (07:42)
  5. 2004 Dome and Surrounding Area of Deformation; November 11, 2004 (08:40)
  6. Forward Looking Infrared (FLIR) Thermal Imaging of 2004 Dome and Surrounding Area of Deformation; November 11, 2004  (15:25)
  7. Time-lapse Photography of Dome Growth (13 1-Second Stills), October 10 to November 12, 2004 (18:25)
  8. Time-lapse Photography of Dome Growth (13 1-Second Stills with Dissolves), October 10 to November 12, 2004  (18:46)
  9. Time-lapse Photography of Dome Growth (First and Last Frame Only), October 10 to November 12, 2004  (19:09)
  10. Time-lapse Photography of Dome Growth (Zoom of First and Last Frame Only), October 10 to November 12, 2004 (19:22)
  11. Time-lapse Photography of Dome Growth (Zoom  with Dissolve of First and Last Frame Only), October 10 to November 12, 2004  (19:33)
  12. Time-lapse Photography of Dome Growth (Zoom Side-By-Side), October 10 to November 12, 2004  (19:46)

Details

Start Year: Late October 2004

End Year: Mid November 2004

Image Dimensions: 480 x 360

Date Taken:

Length: 00:20:16

Location Taken: Mount St. Helens, WA, US

Video Credits

Footage by USGS Cascades Volcano Observatory Staff
Produced by Don Becker and Matthew Logan

Source:

Transcript

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