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2005 Salt Lake City Annual Meeting (October 16–19, 2005)

Session No. 242
Wednesday, 19 October 2005: 1:30 PM-5:30 PM

P5. The 2004–2005 Eruption of Mount St. Helens: New Insights and Hazard Management of an Extraordinary Dacitic Dome-Growth Eruption

GSA Quaternary Geology and Geomorphology Division; GSA Geophysics Division; GSA Engineering Geology Division

 

Jon Major and Cynthia Gardner, Conveners
Paper #
Start Time
 
1:30 PM
Introductory Remarks
1
1:45 PM
AERIAL PHOTOGRAMMETRIC MONITORING OF THE 2004-2005 ERUPTION OF MOUNT ST. HELENS
SCHILLING, Steve P.1, THOMPSON, Ren A.2 and MESSERICH, James2, (1)US Geological Survey, Cascades Volcano Observatory, 1300 SE Cardinal Court, Vancouver, WA 98683, (2)US Geological Survey, Denver Photogrammetry Laboratory, Denver Federal Center, Denver, CO 80225, sschilli@usgs.gov, sschilli@usgs.gov
Recorded presentation
2
2:05 PM
EVOLUTION OF DOME GROWTH AT MOUNT ST. HELENS IN 2004-2005: AIRBORNE OPTICAL AND THERMAL-INFRARED OBSERVATIONS
VALLANCE, James W.1, SCHNEIDER, David J.2, LOGAN, Matthew1 and WESSELS, Rick2, (1)Cascades Volcano Observatory, U.S. Geological Survey, Vancouver, WA 98683, (2)Alaska Volcano Observatory, U.S. Geological Survey, Anchorage, AK 99508, jvallance@usgs.gov, jvallance@usgs.gov
3
2:25 PM
QUANTIFYING SPATIAL AND TEMPORAL VARIANCE IN APPARENT GROWTH RATE OF THE 2004-05 MOUNT ST. HELENS LAVA DOME FROM SINGLE-CAMERA IMAGES
MAJOR, J.J.1, POLAND, M.P.2, KINGSBURY, C.G.3, DZURISIN, D.4 and LAHUSEN, R.G.4, (1)USGS, Cascades Volcano Observatory, Vancouver, WA 98683, (2)U.S. Geological Survey, Hawaii Volcano Observatory, Hawaii National Park, HI 96718, (3)Dept. of Geology and Geophysics, University of Alaska Fairbanks, Fairbanks, AK 99775, (4)U.S. Geological Survey, Cascades Volcano Observatory, Vancouver, WA 98683, jjmajor@usgs.gov, jjmajor@usgs.gov
4
2:45 PM
EMISSION RATES OF CO2, SO2, AND H2S DURING THE 2004-2005 ERUPTION OF MOUNT ST. HELENS
GERLACH, T.M., MCGEE, K.A. and DOUKAS, M.P., U.S. Geological Survey, Cascades Volcano Observatory, 1300 SE Cardinal Ct #100, Vancouver, WA 98683-9589, tgerlach@usgs.gov, tgerlach@usgs.gov
5
3:05 PM
ERUPTION OF THE VOLCANIC CONDUIT AT MOUNT ST. HELENS – PETROLOGY OF THE 2004-2005 LAVA DOME
PALLISTER, John S., USGS Cascades Volcano Observatory, 1300 Cardinal Court, Suite 100, Vancouver, WA 98683, jpallist@usgs.gov, jpallist@usgs.gov
 
3:25 PM
Break
6
3:45 PM
THE 2004-2005 ERUPTION OF MOUNT ST. HELENS AS VIEWED THROUGH THE LENS OF THE 1980-1986 ERUPTIVE ACTIVITY
CASHMAN, Katharine V., Department of Geological Sciences, Univ of Oregon, 1272 University of Oregon, Eugene, OR 97403-1272, cashman@uoregon.edu, cashman@uoregon.edu
Recorded presentation
7
4:05 PM
VOLCANIC EARTHQUAKES AT MOUNT ST. HELENS: EVIDENCE FOR A STICK-SLIP SEISMIC SOURCE
MALONE, S.D., Department of Earth and Space Sciences, Univ of Washington, Box 351310, Seattle, WA 98195 and QAMAR, Anthony, Earth and Space Sciences, Univ of Washington, Box 351650, Seattle, WA 98195, steve@ess.washington.edu, steve@ess.washington.edu
Recorded presentation
8
4:25 PM
A DYNAMICAL MODEL OF DOME-BUILDING SPASMS, MOUNT ST. HELENS, 2004-2005
IVERSON, Richard M., U.S. Geol Survey, 1300 SE Cardinal Ct. # 100, Vancouver, WA 98683, riverson@usgs.gov, riverson@usgs.gov
Recorded presentation
9
4:45 PM
MANAGING FOR VISITOR SAFETY AND EDUCATIONAL OPPORTUNITIES DURING A PERIOD OF HEIGHTENED ERUPTIVE ACTIVITY AND UNCERTAINTY
FRENZEN, Peter, USDA Forest Service, Mount St. Helens National Volcanic Monument, 42218 NE Yale Bridge Road, Amboy, WA 98601, pfrenzen@fs.fed.us, pfrenzen@fs.fed.us
Recorded presentation
10
5:05 PM
A MEDIA ERUPTION
DOUGHTON, Sandi, The Seattle Times, 1120 John Street, Seattle, WA 98109, sdoughton@seattletimes.com, sdoughton@seattletimes.com
Recorded presentation
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