2009 Portland GSA Annual Meeting (18-21 October 2009)

Session No. 82
Monday, 19 October 2009: 8:00 AM-12:00 PM
B116 (Oregon Convention Center)

T64. Physics of Volcanic Eruptions: Implications for Hazards

GSA Geophysics Division; GSA Quaternary Geology and Geomorphology Division; GSA Structural Geology and Tectonics Division

 

Larry G. Mastin, Donald B. Dingwell and J. Kelly Russell, Advocates
Paper #
Start Time
1
8:00 AM
LINKING THE FLOW DYNAMICS IN MAGMA CHAMBERS AND DYKES TO THE GEOPHYSICAL OBSERVATIONS ON THE SURFACE
PAPALE, Paolo1, LONGO, Antonella1, SACCOROTTI, Gilberto1, VASSALLI, Melissa2, MONTAGNA, Chiara1, GIUDICE, Davide1 and CASSIOLI, Andrea3, (1)Sezione di Pisa, Istituto Nazionale di Geofisica e Vulcanologia, Via della Faggiola 32, Pisa, 56126, Italy, (2)School of Geological Sciences, University College Dublin, Benfield, Dublin, Dublin 4, Ireland, (3)Dipartimento di Sistemi e Informatica, Università di Firenze, Via di S. Marta 3, Firenze, 50139, Italy, papale@pi.ingv.it, papale@pi.ingv.it
2
8:15 AM
MANTLE TO SURFACE, PASSIVE AND EXPLOSIVE DEGASSING OF EREBUS VOLCANO
OPPENHEIMER, Clive, Department of Geography, University of Cambridge, Downing Place, Cambridge, CB2 3EN, United Kingdom, MORETTI, Roberto, Osservatorio Vesuviano, Istituto Nazionale di Geofisica e Vulcanologia, Via Diocleziano 328, Napoli, 80124, Italy and KYLE, Phil, Department of Earth & Environmental Science, New Mexico Tech, Socorro, NM 87801, co200@cam.ac.uk, co200@cam.ac.uk
3
8:30 AM
CAN STATIC MAGMA DECCAN STATIC MAGMA DECOMPRESSION TRIGGER AN ERUPTION? EVIDENCE FROM KĪLAUEA VOLCANO, HAWAI`I
POLAND, Michael P., Cascades Volcano Observatory, U.S. Geological Survey, 1300 SE Caridinal Ct., Suite 100, Vancouver, WA 98683, SUTTON, A. Jeff, Hawaiian Volcano Observatory, Hawaiian Volcano Observatory, 51 Crater Rim Drive, Hawaii National Park, HI 96718-0051 and GERLACH, Terrence M., Cascades Volcano Observatory, U.S. Geological Survey, 1300 SE Cardinal Ct, Suite 100, Vancouver, WA 98683-9589, mpoland@usgs.gov, mpoland@usgs.gov
4
8:45 AM
CONTINUOUS GRAVITY MONITORING OF PERSISTENTLY ACTIVE VOLCANOES: THE HURDLES AND POTENTIAL BENEFITS
WILLIAMS-JONES, Glyn, Earth Sciences, Simon Fraser University, 8888 University Drive, Burnaby, BC V5A1S6, Canada, glynwj@sfu.ca, glynwj@sfu.ca
5
9:00 AM
SEISMO-ACOUSTIC ARRAY OBSERVATIONS OF SHALLOW CONDUIT PROCESSES AT FUEGO VOLCANO, GUATEMALA
WAITE, Gregory P., Geological and Mining Engineering and Sciences, Michigan Technological Univ, 1400 Townsend Dr, Houghton, MI 49931 and LYONS, John J., Geological and Mining Engineering and Sciences, Michigan Technological University, 1400 Townsend Dr, Houghton, MI 49931, gpwaite@mtu.edu, gpwaite@mtu.edu
6
9:15 AM
CHARACTERISTICS AND MODELS OF CYCLIC ERUPTIVE ACTIVITY AT FUEGO VOLCANO, GUATEMALA (2005-2007) DERIVED FROM VISUAL OBSERVATIONS AND SEISMIC, ACOUSTIC AND THERMAL MEASUREMENTS
LYONS, John J., Geological Mining Engineering & Sciences, Michigan Technological University, Houghton, MI 49931, WAITE, Gregory P., Geological and Mining Engineering and Sciences, Michigan Technological Univ, 1400 Townsend Dr, Houghton, MI 49931 and ROSE, William I., Geological Engineering & Sciences, Michigan Technological Univ, 1400 Townsend Dr, Houghton, MI 49931, jlyons@mtu.edu, jlyons@mtu.edu
7
9:30 AM
THE ROLE OF POROSITY ON DOME EXTRUSION PROCESSES: EXPERIMENTAL INSIGHTS
KENNEDY, Lori A.1, RUSSELL, Kelly2 and NELLES, Ed1, (1)Earth & Ocean Sciences, University of British Columbia, 6339 Stores Rd, Vancouver, BC V6T1Z4, Canada, (2)Earth and Ocean Sciences, The University of British Columbia, 6339 Stores Road, Vancouver, BC V6T 1Z4, Canada, lkennedy@eos.ubc.ca, lkennedy@eos.ubc.ca
 
9:45 AM
Break
8
10:00 AM
THE AUGUST 7, 2008 ERUPTION OF KASATOCHI VOLCANO: A MAJOR EXPLOSIVE ERUPTION AND ITS AFTERMATH AT A SMALL ISLAND VOLCANO IN THE CENTRAL ALEUTIAN ISLANDS OF ALASKA
WAYTHOMAS, Christopher F., U.S. Geological Survey, Alaska Volcano Observatory, 4210 University Dr, Anchorage, AK 99508, SCOTT, W.E., U.S. Geological Survey, 1300 SE Cardinal Court, Vancouver, WA 98683, NYE, Christopher J., Alaska Division of Geological and Geophysical Surveys, Alaska Volcano Observatory, 3354 College Road, Fairbanks, AK 99709, IZBEKOV, Pavel, Geophysical Institute, University of Alaska-Fairbanks, PO Box 757320, Fairbanks, 99775 and WILLIAMS, Jeffery, US Fish and Wildlife Service, Alaska Maritime National Wildlife Refuge, Aleutian Islands Unit, 95 Sterling Highway, Suite 1, Homer, AK 99603, cwaythomas@usgs.gov, cwaythomas@usgs.gov
9
10:15 AM
THE SENSITIVITY OF MIXING CONDITIONS ON NON-EXPLOSIVE HYDROMAGMATIC FRAGMENTATION, AS ILLUSTRATED IN A SERIES OF SIMPLE LABORATORY EXPERIMENTS
MASTIN, Larry G., U.S. Geological Survey, 1300 SE Cardinal Court, Bldg. 10, Suite 100, Vancouver, WA 98683, DOWNEY, Warna S., Department of Geology, University of New Brunswick, 2 Bailey Drive, Fredericton, NB E3A 5A3, Canada, SCHEU, Bettina, Department of Earth and Environmental Sciences, Ludwig Maximilians University, Theresienstrasse 41/III, Munich, 80333, Germany and TADDEUCCI, Jacopo, Istituto Nazionale di Geofisica e Volcanologia, Via di Vigna Murata, 605, Rome, 00143, Italy, lgmastin@usgs.gov, lgmastin@usgs.gov
10
10:30 AM
PRODUCTS OF SHORT-LIVED PYROCLASTIC EVENTS DURING THE 2008-2009 HALEMA'UMA'U ERUPTION, Kīlauea: IMPLICATIONS FOR ERUPTION PROCESS AND HAZARDS
HOUGHTON, B.F.1, SWANSON, D.a.2 and CAREY, R.J.1, (1)Geology & Geophysics, University of Hawaii, Honolulu, HI 96825, (2)Hawaiian Volcano Observarory, U.S. Geological Survey, PO Box 51, Hawaii Volcanoes National Park, HI 96817, bhought@soest.hawaii.edu, bhought@soest.hawaii.edu
11
10:45 AM
EFFECTS OF COMPLEX VENT GEOMETRY ON VOLCANIC JET DECOMPRESSION
OGDEN, Darcy E., Geophysics, Stanford University, 397 Panama Mall, Stanford, CA 94305 and WOHLETZ, Kenneth H., Earth and Environmental Sciences, Los Alamos National Lab, PO Box 1663, Los Alamos, NM 87545, darcy.ogden@gmail.com, darcy.ogden@gmail.com
12
11:00 AM
EXPERIMENTAL SIMULATIONS OF THE MAY 18, 1980 DIRECTED BLAST AT MOUNT ST. HELENS, WA
ORESCANIN, Mara M.1, AUSTIN, Joanna M.2 and KIEFFER, Susan W.1, (1)Geology, University of Illinois at Urbana Champaign, 245 Natural History Building, 1301 W. Green Street, Urbana, IL 61801, (2)Aerospace Engineering, University of Illinois at Urbana Champaign, 311 Talbot Laboratory, 104 South Wright Street, Urbana, IL 61801, s1kieffer@gmail.com, s1kieffer@gmail.com
13
11:15 AM
NEW VIEW OF LATERAL BLAST DYNAMICS AT MOUNT ST. HELENS
VOIGHT, Barry1, ESPOSTI ONGARO, T.2, WIDIWIJAYANTI, C.3, NERI, A.2 and CLARKE, Amanda4, (1)Geosciences, Penn State University, University Park, PA 16802, (2)Istituto Nazionale di Geofisica e Vulcanologia - Sezione di Pisa, Via della Faggiola, 32 - 56126, Pisa, Italy, (3)Geosciences, Earth Observatory Singapore, Singapore, (4)School of Earth and Space Exploration, Arizona State University, PO Box 871404, Tempe, AZ 85287-1404, voight@ems.psu.edu, voight@ems.psu.edu
14
11:30 AM
EXPERIMENTAL INVESTIGATION OF NEAR-VENT ENTRAINMENT FOR UNDEREXPANDED JETS
SOLOVITZ, Stephen A.1, MASTIN, Larry G.2 and SAFFARAVAL, Farhad1, (1)Mechanical Engineering, Washington State University Vancouver, 14204 NE Salmon Creek Ave, VELS 130F, Vancouver, WA 98686, (2)U.S. Geological Survey, 1300 SE Cardinal Court, Bldg. 10, Suite 100, Vancouver, WA 98683, stevesol@vancouver.wsu.edu, stevesol@vancouver.wsu.edu
15
11:45 AM
MODELING AND FORECASTING TEPHRA ACCUMULATION WITH TEPHRA2
CONNOR, Charles, Department of Geology, University of South Florida, SCA 528, 4202 E. Fowler Ave, Tampa, FL 33620, CONNOR, Laura, Department of Geology, University of South Florida, 4202 E. Fowler Ave, SCA 528, Tampa, FL 33620, BONADONNA, Costanza, Section des Sciences de la Terre, Université de Genève, 13, rue des Maraîchers, Geneva, 1205, Switzerland and VOLENTIK, Alain C.M., Department of Geology, Univsersity of South Florida, SCA 528, 4202 E. Fowler Ave, Tampa, FL 33620, cconnor@cas.usf.edu, cconnor@cas.usf.edu
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