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AVO STAFF DIRECTORY
AVO is a very extended family. Some people work full time for the observatory, others well under half time. Others perform essential work, but only draw operating expenses. Several agencies contribute personnel at several locations. A wide variety of disciplines are represented, including geophysics, geology, glaciology, hydrology, geochemistry, remote sensing, computing, electronics, and administration. The following people are the paid staff, and share among themselves about 22 Full Time Equivalent positions.

[List staff by discipline] [List staff alphabetically] [List staff by office location]
* When listing staff by discipline, some individuals may be listed more than once.

ADGGS
907-451-5010
3354 College Road
Fairbanks, AK 99709
Cameron, CherylNye, ChristopherSchaefer, JanetSnedigar, Seth
UAF/GI
USGS
Stephanie Prejean
Institute: USGS
Discipline(s):Seismology
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Murphy, Rachel, Thurber, Clifford, Prejean, Stephanie, and Bennington, Ninfa, 2014, Three-dimensional seismic velocity structure and earthquake relocations at Katmai, Alaska: Journal of Volcanology and Geothermal Research, v. 276, p. 121-131, doi:10.1016/j.jvolgeores.2014.02.22
http://dx.doi.org/10.1016/j.jvolgeores.2014.02.22

Ohlendorf, S.J., Thurber, C.H., Pesicek, J.D., and Prejean, S.G., 2014, Seismicity and seismic structure at Okmok Volcano, Alaska: Journal of Volcanology and Geothermal Research, v. 278-279, p. 103-119, doi:10.1016/j.jvolgeores.2014.04.002
http://dx.doi.org/10.1016/j.jvolgeores.2014.04.002

Dmitrieva, Ksenia, Hotovec-Ellis, A.J., Prejean, Stephanie, and Dunham, E.M., 2013, Frictional-faulting model for harmonic tremor before Redoubt Volcano eruptions: Nature Geoscience, v., 6, n. 8, p. 652-656, doi:0.1038/NGEO1879
http://dx.doi.org/0.1038/NGEO1879

Hotovec, A.J., Prejean, S.G., Vidale, J.E., and Gomberg, Joan, 2013, Strongly gliding harmonic tremor during the 2009 eruption of Redoubt Volcano: Journal of Volcanology and Geothermal Research, v. 259, p.88-99, doi:10.1016/j.jvolgeores.2012.01.001
http://dx.doi.org/10.1016/j.jvolgeores.2012.01.001

Dixon, J.P., Stihler, S.D, Power, J.A., Haney, Matt, Parker, Tom, Searcy, C.K., and Prejean, Stephanie, 2013, Catalog of earthquake hypocenters at Alaskan volcanoes: January 1 through December 31, 2012: U.S. Geological Survey Data Series 789, 84 p., available at http://pubs.usgs.gov/ds/789/ .
Download link to publication on USGS website
Download PDF full-text pdf : 6.5 MB

Brown, J.R., Prejean, S.G., Beroza, G.C., Gomberg, J.S., and Haeussler, P.J., 2013, Deep low-frequency earthquakes in tectonic tremor along the Alaska-Aleutian subduction zone: Journal of Geophysical Research B: Solid Earth, v. 118, n. 3, p. 1079-1090.

Winfree, Robert, with contributions from Bacon, C.R., Bennett, A.J., Bennington, Ninfa, Berg, E.E., Brooks, Margi, Coletti, H.A., Coombs, M.L., Fierstein, Judy, Freeburg, Gary, Frost, G.V., Haney, Matthew, Jorgenson, M.T., Miller, A.E., Moran, Seth, Murphy, Rachel, Partnow, Patricia, Paskievitch, John, Stevens, D.P., Powell, Lee, Power, John, Prejean, S.G., Schaaf, Jeanne, Sherriff, R.L., Thurber, Clifford, and Welchman, R.A., 2012, Katmai science studies: Alaska Park Science Journal, v. 11, n. 1, 96 p., available online at http://www.nps.gov/akso/nature/science/ak_park_science/volume_11_issue_1.cfm .
Download link to NPS website with full PDFs

Thurber, Clifford, Murphy, Rachel, Prejean, Stephanie, Haney, Matthew, Bennington, Ninfa, Powell, Lee, and Paskievitch, John, 2012: Earthquake studies reveal the magmatic plumbing system of the Katmai volcanoes: in Winfree, Robert (project lead), Katmai Science Studies: Alaska Park Science Journal, v. 11, n. 1, p. 34-39, available online at http://www.nps.gov/akso/nature/science/ak_park_science/volume_11_issue_1.cfm .
Download link to PDF on NPS website

Prejean, Stephanie, Moran, Seth, and Power, John, 2012, Volcanic earthquakes in Alaska's National Parks: in Winfree, Robert (project lead), Katmai Science Studies: Alaska Park Science Journal, v. 11, n. 1, p. 40-45, available online at http://www.nps.gov/akso/nature/science/ak_park_science/volume_11_issue_1.cfm .
Download link to PDF on NPS website

Pesicek, J.D., Sileny, J., Prejean, S.G., and Thurber, C.H., 2012, Determination and uncertainty of moment tensors for microearthquakes at Okmok Volcano, Alaska: Geophysical Journal International, v. 190, p. 1689-1709.

citation imageRuppert, N.A., Prejean, Stephanie, and Hansen, R.A., 2011, Seismic swarm associated with the 2008 eruption of Kasatochi Volcano, Alaska: Earthquake locations and source parameters: Journal of Geophysical Research, v. 116, n. B00B07, 18 p., doi:10.1029/2010JB007435 .
http://dx.doi.org/10.1029/2010JB007435

Prejean, S., Murphy, R., Thurber, C., McNutt, S., Stihler, S., and Syracuse, E., 2011, The 2008 earthquake swarm at Trident and Novarupta volcanoes: a case of fluid triggered seismicity? [abs.]: Seismological Research Letters, v. 82, n. 2, p. 278.

Prejean, S.G., and Brodsky, E.E., 2011, Volcanic plume height measured by seismic waves based on a mechanical model [abs.]: Journal of Geophysical Research, v. 116, n. B1, 1 p.

Murphy, R.A., Thurber, C.H., Prejean, S.G., and Zhang, H., 2011, What can S-waves tell us about magma storage beneath the Katmai volcanic complex? [abs.]: Seismological Research Letters, v. 82, n. 2, p. 325.

Prejean, S.G, and Brodsky, E.E., 2011, Volcanic plume height measured by seismic waves based on a mechanical model: Journal of Geophysical Research, v. 116, n. B1, B0106, 13 p., doi: 10.1029/2010JB007620 .
http://dx.doi.org/10.1029/2010JB007620

citation imageJohnson, J.H., Prejean, Stephanie, Savage, M.K., and Townend, John, 2010, Anisotropy, repeating earthquakes, and seismicity associated with the 2008 eruption of Okmok volcano, Alaska: Journal of Geophysical Research, v. 115, n. B00B04, 21 p., doi:10.1029/2009JB006991 .
http://dx.doi.org/10.1029/2009JB006991

citation imageWaythomas, C.F., Scott, W.E., Prejean, S.G., Schneider, D.J., Izbekov, Pavel, and Nye, C.J., 2010, The 7-8 August 2008 eruption of Kasatochi Volcano, central Aleutian Islands, Alaska: Journal of Geophysical Research, v. 115, n. B00B06, 23 p., doi:10.1029/2010JB007437 .
http://dx.doi.org/10.1029/2010JB007437

Murphy, R.A., Thurber, C.H., and Prejean, S.G., 2010, Initial results from a temporary seismic array in Katmai National Park, Alaska: velocity and attenuation models [abs.]: Seismological Research Letters, v. 81, n. 2, p. 352.

citation imageLarsen, J., Neal, C., Webley, P., Freymueller, J., Haney, M., McNutt, S., Schneider, D., Prejean, S., Schaefer, J., and Wessels, R., 2009, Eruption of Alaska volcano breaks historic pattern: Eos, Transactions, American Geophysical Union, v. 90, n. 20, p. 173-174.

citation imageStatz-Boyer, Patrick, Thurber, Clifford, Pesicek, Jeremy, and Prejean, Stephanie, 2009, High precision relocation of earthquakes at Iliamna Volcano, Alaska: Journal of Volcanology and Geothermal Research, v. 184, p. 323-332, doi: 10.1016/j.jvolgeores.2009.04.016 .
http://dx.doi.org/10.1016/j.jvolgeores.2009.04.016

Prejean, S.G., and Hill, D.P., 2009, Earthquakes, dynamic triggering of, in Meyers, R.A., ed., Encyclopedia of complexity and systems science: New York, Springer, v. 3, p. 2600-2621.

Waythomas, C.F., Prejean, S.G., and Schneider, D.J., 2008, Small volcano, big eruption, scientists rescued just in time: US Department of the Interior online publication People, Land, and Water preprint.

Pesicek, J.D., Thurber, C.H., DeShon, H.R., Prejean, S.G., and Zhang, Haijiang, 2008, Three-dimensional P-wave velocity structure and precise earthquake relocation at Great Sitkin Volcano, Alaska: Bulletin of the Seismological Society of America, v. 98, n. 5, p. 2428-2448.

Waythomas, C.F., Prejean, S.G., and McNutt, S.R., 2008, Alaska's Pavlof Volcano ends 11-year repose: Eos, v. 89, n. 23, p. 209, 211.

Power, J.A., Lu, Z., Prejean, S., Wicks, C., and Dzurisin, D., 2008, The 1996 earthquake swarm and intrusion at Akutan Volcano, Alaska: an example of a failed eruption [abs.]: Eos, Transactions, American Geophysical Union, v. 89, n. 53, 1 p.

Prejean, S., Haney, M., Pesicek, J., and Thurber, C., 2008, Seismicity and structure of the Katmai volcanic cluster, Alaska, revealed [abs.]: Eos, Transactions, American Geophysical Union, v. 89, n. 53, 1 p.

Dixon, J.P., Prejean, S.G., and Power, J.A., 2007, The January 2006 volcanic-tectonic earthquake swarm at Mount Martin, Alaska [abs].: Seismological Research Letters, v. 78, n. 2, p. 255.

Brown, J., Deshon, H., Prejean, S., Thurber, C., and Power, J., 2006, Cross-correlation analysis reveals waveform similarity in long-period events prior to eruptive activity at Mt. Spurr Volcano, Alaska [abs.]: Seismological Research Letters, v. 77, n. 2, p. 241.

Meyer, N., Deshon, H., Thurber, C., and Prejean, S., 2006, Cross-correlation and double-difference techniques used in earthquake relocations at Shishaldin Volcano, Alaska [abs.]: Seismological Research Letters, v. 77, n. 2, p. 241.

Pesicek, J., Deshon, H., Thurber, C., and Prejean, S., 2006, High-precision earthquake locations at Great Sitkin Volcano, Alaska using waveform alignment and double-difference techniques [abs.]: Seismological Research Letters, v. 77, n. 2, p. 242.

citation imageDixon, J.P., Stihler, S.D., Power, J.A., Tytgat, Guy, Estes, Steve, Prejean, Stephanie, Sanchez, J.J., Sanches, Rebecca, McNutt, S.R., and Paskievitch, John, 2005, Catalog of earthquake hypocenters at Alaskan volcanoes: January 1 through December 31, 2004: U.S. Geological Survey Open-File Report 2005-1312, 74 p., available online at http://pubs.usgs.gov/of/2005/1312/.
Download website with links to PDF and data files

Power, J.A., Stihler, S.D., Dixon, J.P., Moran, S.C., Caplan-Auerbach, J., Prejean, S.G., McGee, K., Doukas, M.P., and Roman, D.C., 2004, Renewed seismic unrest at Mount Spurr Volcano, Alaska in 2004: Evidence for a magmatic intrusion: Eos Trans., AGU, 85(47), Fall meeting supplement, Abstract number S51A-0143.

citation imageCaplan-Auerbach, Jacqueline, Prejean, S.G., and Power, J.A., 2004, Seismic recordings of ice and debris avalanches of Iliamna Volcano (Alaska): Acta Vulcanologica, v. 16, n. 1-2, p. 9-20.

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