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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.

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* When listing staff by discipline, some individuals may be listed more than once.

AVO Staff Listing
Christina Neal
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Department: Alaska Volcano Observatory
Institute: USGS
Address: Anchorage, AK 99508
Discipline(s):Geology
Tephra
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I have been working for the USGS on various aspects of volcanology, eruption response, and hazard mitigation since 1983. My introduction to volcanoes started in college looking at Viking Orbiter images of Olympus Mons and other volcanic features on Mars. My first Earthly volcano was Mount St. Helens where I prowled the pumice plain in 1982 and watched wide-eyed as the lava dome above me erupted gas and ash. I learned a great deal about lava and volcano monitoring at the Hawaiian Volcano Observatory in the early days of the Pu`u`O`o eruption and spent several years mapping the summit and southwest rift zone of Kilauea Volcano. In 1985, I enjoyed a month at sea on an ALVIN expedition to the active propagating rift system near the Galapagos at 95.5W. I moved to Alaska in 1990 where I have been a geologist on staff at the Alaska Volcano Observatory ever since. I've been fortunate to respond to and study major eruptions at Redoubt, Spurr, Augustine, Okmok, and a steady stream of smaller events in the Aleutian arc. My science focuses on deciphering eruptive histories, studies of young pyroclastic deposits and processes, and hazard assessment. Volcanoes where I have spent considerable field time with my AVO and academic colleagues include: Spurr, Redoubt, Ukinrek, Aniakchak, Black Peak, Okmok, and Little Sitkin. Being at an Observatory where there is an emphasis on eruption response, I've developed strong interests and experience in managing volcano hazard information, warning systems, interagency coordination, and volcanic ash and aviation hazards. Because Alaska is downwind of Russia, I work with Russian volcanology colleagues in Kamchatka and Sakhalin on Russian eruption warning systems. My professional interests and collaborations have taken me to Russia, Japan, Ecuador, Chile, and Iceland. I completed a two-year detail in Washington D.C. as a Geoscience Advisor to USAID's Office of U.S. Foreign Disaster Assistance where I developed and facilitated U.S. assistance in disaster mitigation programs abroad.
[Show Publications]

2008 Volcanic activity in Alaska, Kamchatka, and the Kurile Islands: Summary of events and response of the Alaska Volcano Observatory, 2011
Neal, C.A., McGimsey, R.G., Dixon, J.P., Cameron, C.E., Nuzhaev, A.A., and Chibisova, Marina, 2011, 2008 Volcanic activity in Alaska, Kamchatka, and the Kurile Islands: Summary of events and response of the Alaska Volcano Observatory: U.S. Geological Survey Scientific Investigations Report 2010-5243, 94 p., available at http://pubs.usgs.gov/sir/2010/5243 .
Download link to USGS publication page


Variations in eruption style during the 1931 A.D. eruption of Aniakchak volcano, Alaska, 2011
citation imageNicholson, R.S., Gardner, J.E., and Neal, C.A., 2011, Variations in eruption style during the 1931 A.D. eruption of Aniakchak volcano, Alaska: Journal of Volcanology and Geothermal Research, doi:10.1016/j.jvolgeores.2011.08.002 .
http://dx.doi.org/10.1016/j.jvolgeores.2011.08.002


Timing, distribution, and character of tephra fall from the 2005-2006 eruption of Augustine Volcano, 2010
Wallace, K.L., Neal, C.A., and McGimsey, R.G., 2010, Timing, distribution, and character of tephra fall from the 2005-2006 eruption of Augustine Volcano, chapter 9 of Power, J.A., Coombs, M.L., and Freymueller, J.T., eds., The 2006 eruption of Augustine Volcano, Alaska: U.S. Geological Survey Professional Paper 1769, p. 187-217 and spreadsheet [http://pubs.usgs.gov/pp/1769/chapters/p1769_chapter09].
Download USGS website of chapter PDF


Emission of SO2, CO2, and H2S from Augustine Volcano, 2002-2008, 2010
McGee, K.A., Doukas, M.P., McGimsey, R.G., Neal, C.A., and Wessels, R.L., 2010, Emission of SO2, CO2, and H2S from Augustine Volcano, 2002-2008, chapter 26 of Power, J.A., Coombs, M.L., and Freymueller, J.T., eds., The 2006 eruption of Augustine Volcano, Alaska: U.S. Geological Survey Professional Paper 1769, p. 609-627 [http://pubs.usgs.gov/pp/1769/chapters/p1769_chapter26.pdf].
Download PDF chapter PDF on USGS website


Public outreach and communications of the Alaska Volcano Observatory during the 2005-2006 eruption of Augustine Volcano, 2010
Adleman, J.N., Cameron, C.E., Snedigar, S.F., Neal, C.A., and Wallace, K.L., 2010, Public outreach and communications of the Alaska Volcano Observatory during the 2005-2006 eruption of Augustine Volcano, chapter 27 of Power, J.A., Coombs, M.L., and Freymueller, J.T., eds., The 2006 eruption of Augustine Volcano, Alaska: U.S. Geological Survey Professional Paper 1769, p. 631-644 [http://pubs.usgs.gov/pp/1769/chapters/p1769_chapter27.pdf].
Download PDF chapter PDF on USGS website


Hazard information management, interagency coordination, and impacts of the 2005-2006 eruption of Augustine Volcano, 2010
Neal, C.A. Murray, T.L. Power, J.A. Adleman, J.N. Whitmore, P.M. and Osiensky, J.M. 2010, Hazard information management, interagency coordination, and impacts of the 2005-2006 eruption of Augustine Volcano, chapter 28 of Power, J.A., Coombs, M.L., and Freymueller, J.T., eds., The 2006 eruption of Augustine Volcano, Alaska: U.S. Geological Survey Professional Paper 1769, p. 645-667 [http://pubs.usgs.gov/pp/1769/chapters/p1769_chapter28.pdf].
Download PDF chapter PDF on USGS website


Airborne volcanic ash - a global threat to aviation, 2010
Neal, C.A., and Guffanti, Marianne, 2010, Airborne volcanic ash - a global threat to aviation: U.S. Geological Survey Fact Sheet 2010-3116, 6 p., available online at http://pubs.usgs.gov/fs/2010/3116/fs2010-3116.pdf .
Download PDF PDF on USGS website


August 2008 eruption of Kasatochi Volcano, Aleutian Islands, Alaska - resetting an island landscape, 2010
citation imageScott, W.E., Nye, C.J., Waythomas, C.F., and Neal, C.A., 2010, August 2008 eruption of Kasatochi Volcano, Aleutian Islands, Alaska - resetting an island landscape: Arctic, Antarctic, and Alpine Research, v. 42, n.3, p. 250-259, doi:10.1657/1938-4246-42.3.250 .
http://dx.doi.org/10.1657/1938-4246-42.3.250
Download PDF full-text PDF : 2.99 MB


The July-August 2008 hydrovolcanic eruption of Okmok Volcano, Umnak Island, Alaska, 2009
Neal, C.A., Larsen, J.F., and Schaefer, Janet, 2009, The July-August 2008 hydrovolcanic eruption of Okmok Volcano, Umnak Island, Alaska: Alaska Geological Society Newsletter, v. 39, n. 5, p. 1-3.


2006 Volcanic activity in Alaska, Kamchatka, and the Kurile Islands: Summary of events and response of the Alaska Volcano Observatory, 2008
Neal, C.A., McGimsey, R.G., Dixon, J.P., Manevich, Alexander, and Rybin, Alexander, 2009, 2006 Volcanic activity in Alaska, Kamchatka, and the Kurile Islands: Summary of events and response of the Alaska Volcano Observatory: U.S. Geological Survey Scientific Investigations Report 2008-5214, 102 p., available at http://pubs.usgs.gov/sir/2008/5214/ .
Download USGS website with links to PDF


Atmospheric contribution of gas emissions from Augustine volcano, Alaska during the 2006 eruption, 2008
citation imageMcGee, K.A., Doukas, M.P., McGimsey, R.G., Neal, C.A., and Wessels, R.L., 2008, Atmospheric contribution of gas emissions from Augustine volcano, Alaska during the 2006 eruption: Geophysical Research Letters, v. 35, L03306, doi: 10.1029/2007GL032301, 5 p.
http://dx.doi.org/10.1029/2007GL032301
Download PDF full-text PDF : 165 KB


2005 Volcanic activity in Alaska, Kamchatka, and the Kurile Islands: Summary of events and response of the Alaska Volcano Observatory, 2007
citation imageMcGimsey, R.G., Neal, C.A., Dixon, J.P., and Ushakov, Sergey, 2007, 2005 Volcanic activity in Alaska, Kamchatka, and the Kurile Islands: Summary of events and response of the Alaska Volcano Observatory: U.S. Geological Survey Scientific Investigations Report 2007-5269, 94 p., available at http://pubs.usgs.gov/sir/2007/5269/ .
Download USGS website with link to PDF


Volcanic disruption of summit ice at Mount Spurr Volcano, Alaska, 2004-2007, 2007
Neal, C.A., Coombs, Michelle, Wessels, Rick, and McGimsey, R.G., 2007, Volcanic disruption of summit ice at Mount Spurr Volcano, Alaska, 2004-2007 [abs.]: Geological Society of America - Abstracts with Programs, v. 39, n. 4, p. 20.


Satellite measurement of glaciers on volcanoes in Alaska: building an inventory of ice extent and hazards, 2007
Wessels, Rick, Neal, C.A., Waythomas, Christopher, Huggel, Christian, and Dean, Ken, 2007, Satellite measurement of glaciers on volcanoes in Alaska: building an inventory of ice extent and hazards [abs.]: Geological Society of America - Abstracts with Programs, v. 39, n. 4, p. 20.


Eruption warning systems for aviation in Russia: a 2007 status report, 2007
Neal, Christina, Girina, Olga, Senyukov, Sergey, Rybin, Alexander, Osiensky, Jeffrey, Hall, Tony, Nelson, Kristine, and Izbekov, Pavel, 2007: Eruption warning systems for aviation in Russia: a 2007 status report: Fourth International Workshop on Volcanic Ash, World Meterological Organization (WMO) in close collaboration with the International Civil Aviation Organziation (ICAO) and the Civil Aviation Authority of New Zealand, Rotorua, New Zealand, 26-20 March, 2007, 8 p., available at http://www.caa.govt.nz/Volcanic_Ash_Workshop/Papers/VAWS4WP0301.pdf .


An ash fall atlas poster for volcanic hazard education in the U.S., 2007
Neal, Christina, Wallace, Kristi, and Adleman, Jennifer, 2007, An ash fall atlas poster for volcanic hazard education in the U.S.[abs.]: Cities on Volcanoes 5 Conference, Abstracts volume, Shimabara, Japan, abstract number 32-P-07, p. 168 on unpaginated document.


Geothermal disruption of summit glaciers at Mount Spurr Volcano, 2004-6: an unusual manifestation of volcanic unrest, 2006
citation imageCoombs, M.L., Neal, C.A., Wessels, R.L., and McGimsey, R.G., 2006, Geothermal disruption of summit glaciers at Mount Spurr Volcano, 2004-6: an unusual manifestation of volcanic unrest: U.S. Geological Survey Professional Paper 1732-B, 33 p., available at http://pubs.usgs.gov/pp/pp1732/pp1732b/index.html .
Download website with link to full-text PDF


Quiescent deformation of the Aniakchak Caldera, Alaska, mapped by InSAR, 2006
citation imageKwoun, Oh-Ig, Lu, Zhong, Neal, Christina, and Wicks, Charles Jr., 2006, Quiescent deformation of the Aniakchak Caldera, Alaska, mapped by InSAR: Geology, v. 34, n. 1, p. 5-8, doi: 10.1130%2FG22015.1.
http://dx.doi.org/10.1130%2FG22015.1


Communicating ash-fall hazard to the public during eruptions: a proposed scheme to streamline ash-fall warning messages in the U.S. based on the recent activity at Augustine Volcano, Alaska, 2006
Neal, C., Wallace, K., Albanese, S., Fish, A., and Cahill, C., 2006, Communicating ash-fall hazard to the public during eruptions: a proposed scheme to streamline ash-fall warning messages in the U.S. based on the recent activity at Augustine Volcano, Alaska [abs.]: Eos, Joint Assembly Supplement, v. 87, abstract V33B-0659.


Preliminary volcano-hazard assessment for Okmok Volcano, Umnak Island, Alaska, 2005
citation imageBeget, J.E., Larsen, J.F., Neal, C.A., Nye, C.J., and Schaefer, J.R., 2005, Preliminary volcano-hazard assessment for Okmok Volcano, Umnak Island, Alaska: Alaska Division of Geological & Geophysical Surveys Report of Investigation 2004-3, 32 p., 1 sheet, scale 1:150,000.
Download PDF full text of report : 3.4 MB
Download PDF map sheet : 53.2 MB
Download link to all files for this report on DGGS website


2002 Volcanic activity in Alaska and Kamchatka: Summary of events and response of the Alaska Volcano Observatory, 2005
citation imageNeal, C.A., McGimsey, R.G., and Girina, Olga, 2005, 2002 Volcanic activity in Alaska and Kamchatka: Summary of events and response of the Alaska Volcano Observatory: U.S. Geological Survey Open-File Report OF 2004-1058, 55 p., available online at http://pubs.usgs.gov/of/2004/1058/.
Download PDF full-text PDF : 5.15 MB


2003 volcanic activity in Alaska and Kamchatka: Summary of events and response of the Alaska Volcano Observatory, 2005
citation imageMcGimsey, Robert G., Neal, Christina A., and Girina, Olga, 2005, 2003 volcanic activity in Alaska and Kamchatka: Summary of events and response of the Alaska Volcano Observatory: U.S. Geological Survey Open-File Report 2005-1310, 62 p., http://pubs.usgs.gov/of/2005/1310/.
Download PDF full-text PDF : 3.54 MB
Download website with link to PDF


2004 volcanic activity in Alaska and Kamchatka: summary of events and response of the Alaska Volcano Observatory, 2005
citation imageNeal, C.A., McGimsey, R.G., Dixon, Jim, and Melnikov, Dimitry, 2005, 2004 volcanic activity in Alaska and Kamchatka: summary of events and response of the Alaska Volcano Observatory: U.S. Geological Survey Open-File Report 2005-1308, 71 p., http://pubs.usgs.gov/of/2005/1308/.
Download PDF full-text PDF : 4.82 MB
Download USGS website with link to PDF


The ~400 yr BP caldera-forming eruption of Half Cone Volcano, Aniakchak National Park, Alaska, 2004
Browne, B. L., Eichelberger, J. C., Neal, C. A., and Gardner, J. E., 2004, The ~400 yr BP caldera-forming eruption of Half Cone Volcano, Aniakchak National Park, Alaska [abs.]: IAVCEI General Assembly Supplement, p. unknown.


Analysis of composition and chronology of dome emplacement at Black Peak, Alaska utilizing ASTER remote sensing data and field-based studies, 2004
citation imageAdleman, J.N., Larsen, J.F., Ramsey, M.S., McGimsey, R.G., and Neal, C.A., 2004, Analysis of composition and chronology of dome emplacement at Black Peak, Alaska utilizing ASTER remote sensing data and field-based studies [abs.]: in Abstract Volume, IAVCEI General Assembly, November 2004, Pucon, Chile, s08c_pf_165.
Download PDF full-text PDF : 60 KB


Analysis of composition and chronology of dome emplacement at Black Peak, Alaska utilizing ASTER remote sensing data and field-based studies, 2004
citation imageAdleman, J.N., Larsen, J.F., Ramsey, M.S., McGimsey, R.G., and Neal, C.A., 2004, Analysis of composition and chronology of dome emplacement at Black Peak, Alaska utilizing ASTER remote sensing data and field-based studies [abs.]: in Abstract Volume, IV International Biennial Workshop on Subduction Processes emphasizing the Japan-Kurile-Aleutain Arcs, August 2004, unpaged.
Download PDF full-text PDF : 16 KB


Headless debris flows from Mount Spurr volcano, Alaska, 2004
McGimsey, R., Neal, C., Waythomas, C., Wessels, R., Coombs, M., Wallace, K., 2004, Headless debris flows from Mount Spurr Volcano, Alaska [abs.]: Transactions, American Geophysical Union, v. 85, n. 47, Abstract V43B-1430.


Evidence for dike emplacement beneath Iliamna Volcano, Alaska in 1996, 2004
citation imageRoman, D. C., Power, J. A., Moran, S. C., Cashman, K. V., Doukas, M. P., Neal, C. A., and Gerlach, T. M., 2004, Evidence for dike emplacement beneath Iliamna Volcano, Alaska in 1996: Journal of Volcanology and Geothermal Research, v. 130, n. 3-4, p. 265-284.


The Alaska Volcano Observatory - Expanded monitoring of volcanoes yields results, 2004
citation imageBrantley, S. R., McGimsey, R. G., and Neal, C. A., 2004, The Alaska Volcano Observatory - Expanded monitoring of volcanoes yields results: U.S. Geological Survey Fact Sheet FS 2004-3084, 2 p.
Download full-text HTML
Download PDF full-text PDF : 260 KB


2001 volcanic activity in Alaska and Kamchatka: Summary of events and response of the Alaska Volcano Observatory, 2004
citation imageMcGimsey, R.G., Neal, C.A., and Girina, Olga, 2004: 2001 volcanic activity in Alaska and Kamchatka: Summary of events and response of the Alaska Volcano Observatory: U.S. Geological Survey Open-File Report OF 2004-1453, 53 p.
Download PDF full-text PDF on AVO's server : 2.67 MB
Download website with link to PDF


Analysis of composition and chronology of dome emplacement at Black Peak, Alaska utilizing ASTER remote sensing data and field-based studies, 2003
Adleman, J.N., Larsen, J.F., Ramsey, M.S., McGimsey, R.G., and Neal, C.A., 2003, Analysis of composition and chronology of dome emplacement at Black Peak, Alaska utilizing ASTER remote sensing data and field-based studies [abs.]: in Fall meeting supplementary, Eos, v. 84, n. 46, Abstract V31G-07.
Download Plaintext website with full text


Preliminary investigations of the ~4600 BP caldera-forming eruption and subsequent post-caldera activity, 2003
McGimsey, R.G., Neal, C.A., Adleman, J.N., Larsen, J.F., and Ramsey, M.S., 2003, Preliminary investigations of the ~4600 BP caldera-forming eruption and subsequent post-caldera activity [abs.]: in Fall meeting supplement, Eos, v. 84, n. 46, V42B-0342.
Download Plaintext website with full text


Deciphering silicic dome emplacement processes in the northern Pacific: Quantitative analyses of high resolution satellite and field-based data, 2003
Ramsey, M.S., Dehn, J., Adleman, J.N., Larsen, J.F., McGimsey, R.G., Neal, C.A., and Wessels, R., 2003, Deciphering silicic dome emplacement processes in the northern Pacific: Quantitative analyses of high resolution satellite and field-based data [abs.]: in Fall meeting supplement, Eos, v. 84, n. 46, V51F-0346.
Download website with full text


1998 volcanic activity in Alaska and Kamchatka: Summary of events and response of the Alaska Volcano Observatory, 2003
citation imageMcGimsey, R. G., Neal, C. A., and Girina, Olga, 2003, 1998 volcanic activity in Alaska and Kamchatka: Summary of events and response of the Alaska Volcano Observatory: U.S. Geological Survey Open-File Report OF 03-0423, 35 p.
Download web site with link to PDF
Download PDF full-text PDF : 1.40 MB


The Kamchatkan Volcanic Eruption Response Team (KVERT), 2002
citation imageKirianov, V. Y., Neal, C. A., Gordeev, E. I., and Miller, T. P., 2002, The Kamchatkan Volcanic Eruption Response Team (KVERT): U.S. Geological Survey Fact Sheet FS 064-02, 2 p.
Download PDF full-text PDF : 455 KB


The 1931 eruption of Aniakchak Volcano, Alaska, 2002
Nicholson, R. S., Neal, C. A., and Gardner, J. E., 2002, The 1931 eruption of Aniakchak Volcano, Alaska [abs.]: Eos, v. 83, n. 47, p. F1465.


Volcano hazard monitoring and ash warnings in the North Pacific; an evolving, multi-agency, international collaboration, 2002
Neal, C. A., 2002, Volcano hazard monitoring and ash warnings in the North Pacific; an evolving, multi-agency, international collaboration [abs.]: Abstracts with Programs - Geological Society of America, v. 34, n. 5, p. 11.


Satellite imagery proves essential for monitoring erupting Aleutian volcano, 2002
citation imageDean, Kenneson, Dehn, Jonathan, McNutt, Steve, Neal, Christina, Moore, Richard, and Schneider, Dave, 2002, Satellite imagery proves essential for monitoring erupting Aleutian volcano: Eos, v. 83, n. 22, p. 241, 246-247.


Areal distribution, thickness, mass, volume, and grain size of tephra-fall deposits from the 1992 eruptions of Crater Peak Vent, Mt. Spurr volcano, Alaska, 2001
citation imageMcGimsey, R. G., Neal, C. A., and Riley, C. M., 2001, Areal distribution, thickness, mass, volume, and grain size of tephra-fall deposits from the 1992 eruptions of Crater Peak Vent, Mt. Spurr volcano, Alaska: U.S. Geological Survey Open-File Report OF 01-0370, 38 p.
Download website with links to PDFs
Download PDF full-text PDF : 10.8 MB


Preliminary volcano-hazard assessment for Aniakchak Volcano, Alaska, 2001
citation imageNeal, Christina, McGimsey, R. G., Miller, T. P., Riehle, J. R., and Waythomas, C. F., 2001, Preliminary volcano-hazard assessment for Aniakchak Volcano, Alaska: U.S. Geological Survey Open-File Report OF 00-0519, 35 p.
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Download PDF full-text PDF : 24.2 MB
Download PDF map sheet plate PDF (for viewing) : 3.1 MB


Isomass maps of the tephra fall deposits from the 1992 eruptions of Crater Peak Vent, Mount Spurr Volcano, Alaska, 2000
McGimsey, R. G., Neal, C. A., and Riley, C. M., 2000, Isomass maps of the tephra fall deposits from the 1992 eruptions of Crater Peak Vent, Mount Spurr Volcano, Alaska [abs.]: Eos, v. 81, n. 48, p. 1312.


Communication of volcano hazards: approach of the Alaska Volcano Observatory, 2000
Neal, C. A., 2000, Communication of volcano hazards: approach of the Alaska Volcano Observatory [abs.]: Abstracts with Programs - Geological Society of America, v. 32, n. 7, p. 335.


Use of FLIR observations during eruption response at two Alaskan volcanoes, 1999
McGimsey, R. G., Schneider, D. J., Neal, C. A., and Roach, A. L., 1999, Use of FLIR observations during eruption response at two Alaskan volcanoes [abs.]: Eos, v. 80, n. 46, p. 1146.


Tephra-fall deposits from the 1992 eruption of Crater Peak, Alaska: implications of clast textures for eruptive processes, 1998
citation imageGardner, C. A., Cashman, K. V., and Neal, C. A., 1998, Tephra-fall deposits from the 1992 eruption of Crater Peak, Alaska: implications of clast textures for eruptive processes: Bulletin of Volcanology, v. 59, n. 8, p. 537-555.


Tsunami generation by pyroclastic flow during the 3500-year B.P. caldera-forming eruption of Aniakchak Volcano, Alaska, 1998
citation imageWaythomas, C. F., and Neal, C. A., 1998, Tsunami generation by pyroclastic flow during the 3500-year B.P. caldera-forming eruption of Aniakchak Volcano, Alaska: Bulletin of Volcanology, v. 60, n. 2, p. 110-124.


Pre-eruptive temperatures for postcaldera magmas of Aniakchak Volcano, Alaska, 1997
Bacon, C. R., Neal, C. A., Nye, C. J., and McGimsey, R. G., 1997, Pre-eruptive temperatures for postcaldera magmas of Aniakchak Volcano, Alaska [abs.]: Eos, v. 78, n. 46, p. 792-793.


New geologic map of Aniakchak Caldera, Alaska, 1997
Neal, C. A., McGimsey, R. G., Miller, T. P., Nye, C. J., Bacon, C. R., and Felger, T. J., 1997, New geologic map of Aniakchak Caldera, Alaska [abs.]: Eos, v. 78, n. 46, p. 816.


Pavlof darkens the Alaskan sky, 1997
Neal, C. A., 1997, Pavlof darkens the Alaskan sky: Earth in Space, v. 9, n. 8, p. 6-9.


Origin of dense juvenile tephra-fall clasts, 1997
Gardner, C. A., Cashman, K. V., and Neal, C. A., 1997, Origin of dense juvenile tephra-fall clasts [abs.]: in IAVCEI General Assembly, Abstracts, p. 113.


Preliminary volcano-hazard assessment for Redoubt Volcano, Alaska, 1997
citation imageWaythomas, C. F., Dorava, J. M., Miller, T. P., Neal, C. A., and McGimsey, R. G., 1997, Preliminary volcano-hazard assessment for Redoubt Volcano, Alaska: U.S. Geological Survey Open-File Report OF 97-857, 40 p., 1 plate, scale unknown.
Download PDF full-text PDF : 1.76 MB
Download PDF map sheet plate PDF : 5.61 MB


Tsunami generation during the 3500 yr B.P. caldera-forming eruption of Aniakchak Volcano, 1997
Waythomas, C. F., and Neal, C. A., 1997, Tsunami generation during the 3500 yr B.P. caldera-forming eruption of Aniakchak Volcano [abs.]: Eos, v. 78, n. 46, p. 816.


Preliminary volcano-hazard assessment for Pavlof Volcano, Alaska, 1997
Waythomas, C. F., Miller, T. P., McGimsey, R. G., and Neal, C. A., 1997, Preliminary volcano-hazard assessment for Pavlof Volcano, Alaska: U.S. Geological Survey Open-File Report OF 97-0135, unpaged, 1 plate, scale 1:375,000.


What is the Alaska Volcano Observatory?, 1997
Neal, C. A., 1997, What is the Alaska Volcano Observatory?: U.S. Geological Survey Open-File Report OF 97-0443, 2 p.


Volcanic ash - Danger to aircraft in the North Pacific, 1997
citation imageNeal, C. A., Casadevall, T. J., Miller, T. P., Hendley, J. W. II., and Stauffer, P. H., 1997, Volcanic ash - Danger to aircraft in the North Pacific: U.S. Geological Survey Fact Sheet FS 30-0097, 2 p.
Download PDF full-text PDF : 196 KB


Volcanoes of the Alaska Peninsula and Aleutian Islands selected photographs, 1997
citation imageNeal, Christina, and McGimsey, R. G., 1997, Volcanoes of the Alaska Peninsula and Aleutian Islands selected photographs: U.S. Geological Survey Digital Data Series DDS 0040, 1 CD-ROM.
Download website with links to HTML album, PDF, and individual images in a variety of formats
Download USGS website with links to photographs


1996 volcanic activity in Alaska and Kamchatka: Summary of events and response of the Alaska Volcano Observatory, 1997
citation imageNeal, Christina, and McGimsey, R. G., 1997, 1996 volcanic activity in Alaska and Kamchatka: Summary of events and response of the Alaska Volcano Observatory: U.S. Geological Survey Open-File Report OF 97-0433, 34 p.
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Download PDF full-text PDF : 795 KB
Download Plaintext ASCII full-text


Use of SAR data to study active volcanoes in Alaska, 1996
Dean, K. G., Neal, C., Doukas, M., Engle, K., and Lu, Z., 1996, Use of SAR data to study active volcanoes in Alaska: Earth Observation Quarterly, v. 53, p. 21-23.


Use of SAR data to study active volcanoes in Alaska, 1996
Dean, K. G., Engle, K., Lu, Z., Eichelberger, J., Neal, C., and Doukas, M., 1996, Use of SAR data to study active volcanoes in Alaska: in Circumpolar symposium, 4, Proceedings, Lyngby, Denmark, Apr. 29-May 1, 1996, Remote sensing of the polar environments, v. 391, Noordwijk, European Space Agency, p.153-158.


Seguam, 1996
Neal, C. A., 1996, Seguam: in Annual report of the world volcanic eruptions in 1993, Bulletin of Volcanic Eruptions, v. 33, p. 90-91.


Makushin, 1996
Neal, C. A., 1996, Makushin: in Annual report of the world volcanic eruptions in 1993, Bulletin of Volcanic Eruptions, v. 33, p. 91-92.


Shishaldin, 1996
Neal, C. A., 1996, Shishaldin: in Annual report of the world volcanic eruptions in 1993, Bulletin of Volcanic Eruptions, v. 33, p. 93.


Veniaminof, 1996
Neal, C. A., 1996, Veniaminof: in Annual report of the world volcanic eruptions in 1993, Bulletin of Volcanic Eruptions, v. 33, p. 94-96.


A catastrophic flood caused by drainage of a caldera lake at Aniakchak Volcano, Alaska, and implications for volcanic hazards assessment, 1996
Waythomas, C. F., Walder, J. S., McGimsey, R. G., and Neal, C. A., 1996, A catastrophic flood caused by drainage of a caldera lake at Aniakchak Volcano, Alaska, and implications for volcanic hazards assessment: Geological Society of America Bulletin, v. 108, n. 7, p. 861-871.


1993 volcanic activity in Alaska: summary of events and response of the Alaska Volcano Observatory, 1996
citation imageNeal, C. A., McGimsey, R. G., and Doukas, M. P., 1996, 1993 volcanic activity in Alaska: summary of events and response of the Alaska Volcano Observatory: U.S. Geological Survey Open-File Report OF 96-0024, 21 p.
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Download PDF full-text PDF : 1149 KB
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Photographs of the 1989-90 eruptions of Redoubt Volcano, Alaska, 1996
Roach, A. L., Neal, C. A., and McGimsey, R. G., 1996, Photographs of the 1989-90 eruptions of Redoubt Volcano, Alaska: U.S. Geological Survey Open-File Report OF 96-689, 30 p.


Volcanoes of the Wrangell Mountains and Cook Inlet Region, Alaska-selected photographs, 1996
citation imageNeal, Christina, and McGimsey, Robert, 1996, Volcanoes of the Wrangell Mountains and Cook Inlet Region, Alaska-selected photographs: U.S. Geological Survey Digital Data Series DDS 0039, 1 CD-ROM.
Download website with links to HTML album, PDF, and individual images in a variety of formats
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1995 volcanic activity in Alaska and Kamchatka: summary of events and response of the Alaska Volcano Observatory, 1996
citation imageMcGimsey, R. G., and Neal, Christina, 1996, 1995 volcanic activity in Alaska and Kamchatka: summary of events and response of the Alaska Volcano Observatory: U.S. Geological Survey Open-File Report OF 96-0738, 22 p.
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The last 3400 years at Aniakchak caldera, Alaska, 1995
Neal, C. A., McGimsey, R. G., Waythomas, C. F., Miller, T. P., and Nye, C. J., 1995, The last 3400 years at Aniakchak caldera, Alaska [abs.]: Abstracts with Programs - Geological Society of America, v. 27, n. 5, p. 67.


Volcanigenic tsunami from Alaskan volcanoes: geologic evidence from Bristol Bay and Cook Inlet, Alaska, 1995
Waythomas, C. F., Neal, C. A., McGimsey, R. G., Dorava, J. M., Lemke, K. J., and Vanderpool, A. M., 1995, Volcanigenic tsunami from Alaskan volcanoes: geologic evidence from Bristol Bay and Cook Inlet, Alaska [abs.]: Eos, v. 76, n. 46, p. 291.


Mechanics of magma/ water interaction, Ukinrek Maars, Alaska, 1995
Ort, M. H., Wohletz, K. H., Neal, C. A., and McConnell, V. S., 1995, Mechanics of magma/ water interaction, Ukinrek Maars, Alaska [abs.]: in International Union of Geodesy and Geophysics, General Assembly, 21, International Union of Geodesy and Geophysics: XXI general assembly; abstracts, Boulder, CO, July 2-14, 1995, Week A, p. 467.


1994 volcanic activity in Alaska: summary of events and response of the Alaska Volcano Observatory, 1995
citation imageNeal, C. A., Doukas, M. P., and McGimsey, R. G., 1995, 1994 volcanic activity in Alaska: summary of events and response of the Alaska Volcano Observatory: U.S. Geological Survey Open-File Report OF 95-0271, 18 p.
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Extreme tholeiitic to calcalkaline transition at Aniakchak volcano, east-central Aleutian arc, 1995
Nye, C. J., Neal, C. A., Miller, T. P., and McGimsey, R. G., 1995, Extreme tholeiitic to calcalkaline transition at Aniakchak volcano, east-central Aleutian arc [abs.]: Abstracts with Programs - Geological Society of America, v. 27, n. 5, p. 69.


Pyroclastic flows of the 1992 Crater Peak eruptions: distribution and origin, 1995
citation imageMiller, T. P., Neal, C. A., and Waitt, R. B., 1995, Pyroclastic flows of the 1992 Crater Peak eruptions: distribution and origin: in Keith, T. E. C., (ed.), The 1992 eruptions of Crater Peak Vent, Mount Spurr volcano, Alaska, U.S. Geological Survey Bulletin B 2139, p. 81-87.
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Tephra-fall deposits from the 1992 eruptions of Crater Peak, Mount Spurr volcano, Alaska: a preliminary report on distribution, stratigraphy, and composition, 1995
citation imageNeal, C. A., McGimsey, R. G., Gardner, C. A., Harbin, M. L., and Nye, C. J., 1995, Tephra-fall deposits from the 1992 eruptions of Crater Peak, Mount Spurr volcano, Alaska: a preliminary report on distribution, stratigraphy, and composition: in Keith, T. E. C., (ed.), The 1992 eruptions of Crater Peak Vent, Mount Spurr volcano, Alaska, U.S. Geological Survey Bulletin B 2139, p. 65-79.
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Volcanic activity in Alaska: Summary of events and response of the Alaska Volcano Observatory 1992, 1995
McGimsey, R. G., Neal, C. A., and Doukas, M. P., 1995, Volcanic activity in Alaska: Summary of events and response of the Alaska Volcano Observatory 1992: U.S. Geological Survey Open-File Report OF 95-83, 26 p.
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Whole-rock major- and trace-element chemistry of 1992 ejecta from Crater Peak, Mount Spurr volcano, Alaska, 1995
citation imageNye, C. J., Harbin, M. L., Miller, T. P., Swanson, S. E., and Neal, C. A., 1995, Whole-rock major- and trace-element chemistry of 1992 ejecta from Crater Peak, Mount Spurr volcano, Alaska: in Keith, T. E. C., (ed.), The 1992 eruptions of Crater Peak Vent, Mount Spurr volcano, Alaska, U.S. Geological Survey Bulletin B 2139, p. 119-128.
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Lightning associated with the August 18, 1992, eruption of Crater Peak vent, Mount Spurr volcano, Alaska, 1995
citation imagePaskievitch, J. F., Murray, T. L., Hoblitt, R. P., and Neal, C. A., 1995, Lightning associated with the August 18, 1992, eruption of Crater Peak vent, Mount Spurr volcano, Alaska: in Keith, T. E. C., (ed.), The 1992 eruptions of Crater Peak Vent, Mount Spurr volcano, Alaska, U.S. Geological Survey Bulletin B 2139, p. 179-182.
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Topographic maps of Novarupta dome and selected portions of the Valley of Ten Thousand Smokes, Katmai National Park and Preserve, Alaska, 1995
citation imageStrobe, Robert, Rice, William, and Neal, C. A., 1995, Topographic maps of Novarupta dome and selected portions of the Valley of Ten Thousand Smokes, Katmai National Park and Preserve, Alaska: U.S. Geological Survey Open-File Report OF 95-0619, unpaged, 4 plates, scale 1:48,000 and 1:2,400.


Repeated volatile zonation in the tephra deposits from the 1992 eruption of Crater Peak, Alaska: magma chamber or magma transport processes?, 1995
Gardner, C. A., Cashman, K. V., and Neal, C. A., 1995, Repeated volatile zonation in the tephra deposits from the 1992 eruption of Crater Peak, Alaska: magma chamber or magma transport processes? [abs.]: Abstracts with Programs - Geological Society of America, v. 27, n. 5, p. 20.


High stand and catastrophic draining of intracaldera Surprise Lake, Aniakchak volcano, Alaska, 1994
citation imageMcGimsey, R. G., Waythomas, C. F., and Neal, C. A., 1994, High stand and catastrophic draining of intracaldera Surprise Lake, Aniakchak volcano, Alaska: in Till, A. B. and Moore, T. E., (eds.), Geologic studies in Alaska by the U.S. Geological Survey, 1993, U.S. Geological Survey Bulletin B 2107, p. 59-71.
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Unusual ice diamicts emplaced during the December 15, 1989 eruption of Redoubt Volcano, Alaska, 1994
citation imageWaitt, R. B., Neal, C. A., Gardner, C. A., Pierson, T. C., and Major, J. J., 1994, Unusual ice diamicts emplaced during the December 15, 1989 eruption of Redoubt Volcano, Alaska: in Chouet, B. A. and Miller, T. P., (eds.), The 1989-1990 eruptions of Redoubt Volcano, Alaska, Journal of Volcanology and Geothermal Research, v. 62, n. 1, p. 409-428.


High stand and catastrophic draining of intracaldera Surprise Lake, Aniakchak Crater, Alaska, 1994
McGimsey, R. G., Waythomas, C. F., and Neal, C. A., 1994, High stand and catastrophic draining of intracaldera Surprise Lake, Aniakchak Crater, Alaska [abs.]: Abstracts with Programs - Geological society of America, v. 26, n. 7, p. A138.


Aniakchak Caldera - working in one of Alaska's most spectacular active volcanoes, 1994
Neal, C. A., and McGimsey, R. G., 1994, Aniakchak Caldera - working in one of Alaska's most spectacular active volcanoes: Alaska Geological Society Newsletter, v. 24, n. 2, p. 5-6.


Proximal pyroclastic deposits from the 1989-1990 eruption of Redoubt volcano, Alaska - stratigraphy, distribution, and physical characteristics, 1994
citation imageGardner, C. A., Neal, C. A., Waitt, R. B., and Janda, R. J., 1994, Proximal pyroclastic deposits from the 1989-1990 eruption of Redoubt volcano, Alaska - stratigraphy, distribution, and physical characteristics: in Miller, T. P. and Chouet, B. A., (eds.), The 1989-1990 eruptions of Redoubt Volcano, Alaska, Journal of Volcanology and Geothermal Research, v. 62, n. 1, p. 213-250.


Complex interactions of ground water and basaltic magma during the eruption of the Ukinrek maars, Alaska, 1994
Ort, M. H., Wohletz, K. H., and Neal, C. A., 1994, Complex interactions of ground water and basaltic magma during the eruption of the Ukinrek maars, Alaska [abs.]: Abstracts with Programs - Geological Society of America, v. 26, n. 7, p. 378.


What is the Alaska Volcano Observatory?, 1994
Neal, Christina, and Doukas, Mike, 1994, What is the Alaska Volcano Observatory?: U.S. Geological Survey Fact Sheet FS 94-0071, 2 p.


Extreme and abrupt transition from tholeiitic to calcalkaline volcanism at Aniakchak Volcano, eastern Aleutian Arc, 1993
Nye, C. J., Neal, C. A., and McGimsey, R. G., 1993, Extreme and abrupt transition from tholeiitic to calcalkaline volcanism at Aniakchak Volcano, eastern Aleutian Arc [abs.]: Eos, v. 74, n. 43, p. 674.


Effects of prevailing wind on the distribution of surge and fallout deposits an Ukinrek Maars, Alaska, 1993
Ort, M. H., Neal, C. A., McConnell, V. S., Wohletz, K. H., Duffield, W. A., and Lescinsky, D. T., 1993, Effects of prevailing wind on the distribution of surge and fallout deposits an Ukinrek Maars, Alaska [abs.]: Eos, v. 74, n. 43, p. 639.


Volatile zonation in the Crater Peak magma: evidence from 1992 tephra-fall deposits, 1993
Gardner, C. A., Neal, C. A., and McGimsey, R. G., 1993, Volatile zonation in the Crater Peak magma: evidence from 1992 tephra-fall deposits [abs.]: Eos, v. 74, p. 621.


Photographs of the 1992 eruptions of Crater Peak, Spurr Volcano, Alaska, 1993
Neal, C. A., McGimsey, R. G., Doukas, M. P., and Ellersieck, Inyo, 1993, Photographs of the 1992 eruptions of Crater Peak, Spurr Volcano, Alaska: U.S. Geological Survey Open-File Report OF 93-707, 9 p.
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The 1992 eruptions of Mt. Spurr Volcano, Alaska: an overview, 1992
Miller, T. P., McNutt, S. R., Eichelberger, J. C., and Neal, C. A., 1992, The 1992 eruptions of Mt. Spurr Volcano, Alaska: an overview [abs.]: Eos, v. 73, n. 43, p. 342.


The August 18, 1992 eruption of Mount Spurr Volcano, Alaska: tephra-fall stratigraphy, distribution and impact, 1992
Neal, C. A., McGimsey, R. G., Doukas, M. P., Miller, T. P., Richter, D., Paskievitch, J. F., and Ellersieck, I., 1992, The August 18, 1992 eruption of Mount Spurr Volcano, Alaska: tephra-fall stratigraphy, distribution and impact [abs.]: Eos, v. 73, n. 43, p. 342.


Lightning associated with the 18 August, 1992 eruption of Mount Spurr, 1992
Paskievitch, J. F., Murray, T. L., Hoblitt, R., and Neal, C. A., 1992, Lightning associated with the 18 August, 1992 eruption of Mount Spurr [abs.]: Eos, v. 73, n. 43, p. 346.


Post-caldera eruptive history of Aniakchak caldera, Alaska, 1992
Neal, C. A., McGimsey, R. G., Braitseva, O., Miller, T. P., Eichelberger, J. C., and Nye, C., 1992, Post-caldera eruptive history of Aniakchak caldera, Alaska [abs.]: Eos, v. 73, n. 43, p. 645.


Alaska Volcano Observatory summary report: May 1, 1991 - June 30, 1991, 1991
citation imageNeal, C.A. (compiler), 1991, Alaska Volcano Observatory summary report: May 1, 1991 - June 30, 1991: Alaska Volcano Observatory bimonthly report series, 8 p.


Alaska Volcano Observatory summary report: September 1, 1991 - October 31, 1991, 1991
citation imageNeal, C.A. (compiler), 1991, Alaska Volcano Observatory summary report: September 1, 1991 - October 31, 1991: Alaska Volcano Observatory bimonthly report series, 7 p.


Geophysical expedition to Novarupta II, 1990
Eichelberger, J. C., Neal, C. A., Paskievitch, J. F., Papike, J. J., and Hildreth, W., 1990, Geophysical expedition to Novarupta II [abs.]: Eos, v. 71, n. 43, p. 1690.


Stratigraphy of proximal pyroclastic deposits from the eruption of Redoubt Volcano, Alaska, December 14, 1989-April 21, 1990, 1990
Gardner, C. A., Waitt, R. B., and Neal, C. A., 1990, Stratigraphy of proximal pyroclastic deposits from the eruption of Redoubt Volcano, Alaska, December 14, 1989-April 21, 1990 [abs.]: Eos, v. 71, n. 43, p. 1706.


Characteristics of proximal pyroclastic deposits from the eruption of Redoubt Volcano, Alaska, January 2, 1990-April 21, 1990, 1990
Neal, C. A., Gardner, C. A., Waitt, R. B., and Miller, T. P., 1990, Characteristics of proximal pyroclastic deposits from the eruption of Redoubt Volcano, Alaska, January 2, 1990-April 21, 1990 [abs.]: Eos, v. 71, n. 43, p. 1706.


Emission rates of sulfur dioxide and carbon dioxide from Redoubt Volcano, Alaska during the 1989-1990 eruptions, 1990
Casadevall, T. J., Neal, C. A., McGimsey, R. G., Doukas, M. P., and Gardner, C. A., 1990, Emission rates of sulfur dioxide and carbon dioxide from Redoubt Volcano, Alaska during the 1989-1990 eruptions [abs.]: Eos, v. 71, n. 43, p. 1702.


Unusual ice conglomerate emplaced during the 15 December 1989 eruption of Redoubt Volcano, Alaska, 1990
Waitt, R. B., Gardner, C. A., Janda, R. J., Miller, T. P., Major, J. J., Pierson, T. C., Neal, C. A., and Vallance, J. W., 1990, Unusual ice conglomerate emplaced during the 15 December 1989 eruption of Redoubt Volcano, Alaska [abs.]: Eos, v. 71, n. 43, p. 1706.


Alaska Volcano Observatory fall report: October 1, 1990 - December 31, 1990, 1990
citation imageNeal, C.A., and Power, J. (compilers), 1990, Alaska Volcano Observatory fall report: October 1, 1990 - December 31, 1990: Alaska Volcano Observatory bimonthly report series, 8 p.


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