Dutton
Spurr
Great Sitkin
Akutan
Aniakchak
Atka volcanic complex
Augustine
Cleveland
Dutton
Edgecumbe
Fisher
Gareloi
Great Sitkin
Griggs
Iliamna
Isanotski
Kanaga
Katmai
Little Sitkin
Mageik
Makushin
Martin
Novarupta
Pavlof
Redoubt
Semisopochnoi
Shishaldin
Snowy
Spurr
Takawangha
Tanaga
Trident
Ugashik-Peulik
Ukinrek Maars
Veniaminof
Westdahl
Wrangell
Adagdak
Addington volcanic field
Alagogshak
Amak
Amchixtam Chaxsxii
Amukta
Andrew Bay volcano
Basalt of Gertrude Creek
Behm Canal-Rudyerd Bay
Black Peak
Bobrof
Bogoslof
Buldir
Buzzard Creek
Camille Cone
Capital
Carlisle
Chagulak
Chiginagak
Churchill, Mt
Cone 3110
Cone 3601
Dana
Davidof
Denison
Devils Desk
Double Glacier
Douglas
Drum
Duncan Canal
Emmons Lake Volcanic Center
Espenberg
Folsoms Bluff
Fourpeaked
Frosty
Gas Rocks, the
Gilbert
Gordon
Gosling Cone
Hayes
Herbert
Imuruk Lake Volc Field
Ingakslugwat Hills
Ingenstrem Depression Volcanic Field
Ingrisarak Mtn
Iron Trig cone
Iskut-Unuk River cones
Jarvis
Jumbo Dome
Kagamil
Kaguyak
Kasatochi
Kejulik
Kialagvik
Kiska
Klawasi Group
Knob 1000
Kochilagok Hill
Koniuji
Kookooligit Mountains
Koyuk-Buckland volcanics
Kukak
Kupreanof
Lone basalt
Maclaren River volcanic field
Moffett
Monogenetic QT vents of WWVF
Morzhovoi
Nelson Island
Nunivak Island
Nushkolik Mountain volcanic field
Okmok
Pavlof Sister
Prindle Volcano
Rainbow River cone
Recheshnoi
Roundtop
Sanford
Seguam
Segula
Sergief
Skookum Creek
St. George volcanic field
St. Michael
St. Paul Island
Steller
Stepovak Bay 1
Stepovak Bay 2
Stepovak Bay 3
Stepovak Bay 4
Suemez Island
Table Top Mtn
Tanada Peak
Tanax̂ Angunax̂
Tlevak Strait
Togiak volcanics
Uliaga
Ungulungwak Hill-Ingrichuak Hill
Unnamed (near Ukinrek Maars)
Vsevidof
Western Cones
Wide Bay cone
Yantarni
Yunaska
Legend
✕
Red (Warning) | |
Orange (Watch) | |
Yellow (Advisory) | |
Green (Normal) | |
Uninstrumented | |
Community | |
Webcam | |
Instrument | |
Earthquake |
Facts
- Official Name: Mount Dutton
- Seismically Monitored: Yes
- Color Code: GREEN
- Alert Level: NORMAL
- Elevation: 1473m (4832ft)
- Latitude: 55.1867
- Longitude: -162.2744
- Smithsonian VNum: 312011
- Pronunciation:
-
Nearby Towns:
- King Cove 9 mi (14 km) SW
- Belkofski 11 mi (18 km) SE
- Cold Bay 18 mi (28 km) SW
- False Pass 50 mi (81 km) SW
- Pauloff Harbor 53 mi (85 km) SW
Distance from Anchorage: 612 mi (985 km)
Description
From Miller and others (1998) [1] : "Mount Dutton is a small snow- and ice-covered calc-alkaline volcanic center with an approximate diameter of 5 km (not including the isolated large intra-canyon lava flow 5 km southwest of the summit) and an estimated volume of 7-15 cubic km. The volcano is built on an east-sloping basement of hydrothermally altered Tertiary volcanic rocks [2] ."The volcano consists of a central multiple dome complex [3] in which successive domes shouldered aside earlier domes and the enclosing cone-building volcanic rocks. Some hydrothermal alteration occurs along vertical contacts between adjacent domes. The dome-building activity and associated collapse has caused extensive destruction of cone-building lava flows and, to a lesser extent the domes themselves. This has resulted in the massive, thick-bedded debris flows 100-200 m thick that surround and mantle the central dome complex.
"A headwall scarp about 300 m high and dipping to the northwest about 45 degrees forms the west side of the summit. Debris avalanches from this and lower areas moved down either side of the east-west oriented range crest. The resulting avalanche deposits include blocks up to 5 m in diameter and are characterized by hummocky topography and small closed depressions. The avalanche deposits cover a total area of about 11.4 square km and have an estimated volume of about 0.17 cubic km.
"Only slightly dissected debris flows and pyroclastic flows occur on the east flank of the volcano. Two flank-domes occur 3.5 km north-northeast of the summit of Mount Dutton at an elevation of 520 m. These non-glaciated flank domes are assumed to represent Holocene eruptions. Most, if not all, of the avalanche and debris flows that mantle the volcano's flanks are also Holocene in age."
Name Origin
T.A. Jagger named Mount Dutton in 1927, for Clarence Edward Dutton, a 19th century volcanologist (Orth, 1971).
References Cited
[1] Catalog of the historically active volcanoes of Alaska, 1998
Miller, T. P., McGimsey, R. G., Richter, D. H., Riehle, J. R., Nye, C. J., Yount, M. E., and Dumoulin, J. A., 1998, Catalog of the historically active volcanoes of Alaska: U.S. Geological Survey Open-File Report 98-0582, 104 p.

[2] Geology of Pavlof Volcano and vicinity, Alaska, 1955
Kennedy, G. C., and Waldron, H. H., 1955, Geology of Pavlof Volcano and vicinity, Alaska: in Investigations of Alaskan volcanoes, U.S. Geological Survey Bulletin 1028-A, 19 p., 1 sheet, scale 1:100,000.

[3] Seismicity and geology of Mt. Dutton, a volcano near the tip of the Alaska Peninsula, 1988
Davies, J.N., Taber, J., and Miller, T.P., 1988, Seismicity and geology of Mount Dutton, a volcano near the tip of the Alaska Peninsula [abs.]: EOS: Transactions American Geophysical Union, v. 69, n. 44, p. 1507.Current Activity
No new updates for Dutton volcano since September 6, 2019, 10:29 am.
Recent Updates
Webcams
Webicorder
Color Code Timeline
Reported Activity
Modern Eruptions
2 Event Date(s)
Past Activity Legend:
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Eruption |
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Questionable eruption |
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Non-eruptive activity |
Map Images
Map References
Recently active volcanoes of Alaska, 2023
Cameron, C.E., Bull, K.F., and Macpherson, A.E., 2023, Recently active volcanoes of Alaska: Alaska Division of Geological & Geophysical Surveys Miscellaneous Publication 133 v. 6, 2 sheets. https://doi.org/10.14509/31086.
Historically active volcanoes of Alaska, v. 3, 2018
Cameron, C.E., Schaefer, J.R., and Mulliken, K.M., 2018, Historically active volcanoes of Alaska: Alaska Division of Geological & Geophysical Surveys Miscellaneous Publication 133 v. 3, 2 sheets. Http://doi.org/10.14509/30142
Historically active volcanoes of Alaska, 2014
Schaefer, J.R., Cameron, C.E., and Nye, C.J., 2014, Historically active volcanoes of Alaska: Alaska Division of Geological & Geophysical Surveys Miscellaneous Publication 133 v. 1.2, 1 sheet, scale 1:3,000,000.
This publication has been superseded. Newest version available at http://www.dggs.alaska.gov/pubs/id/20181 .
Historically active volcanoes of the Aleutian Arc, 2002
Schaefer, Janet, and Nye, C. J., 2002, Historically active volcanoes of the Aleutian Arc: Alaska Division of Geological & Geophysical Surveys Miscellaneous Publication MP 0123, unpaged, 1 sheet, scale 1:3,000,000. Superceded by Miscellaneous Publication 133: http://www.dggs.dnr.state.ak.us/pubs/pubs?reqtype=citation&ID=20181

Volcanoes of Alaska, 1998
Nye, C. J., Queen, Katherine, and McCarthy, A. M., 1998, Volcanoes of Alaska: Alaska Division of Geological & Geophysical Surveys Information Circular IC 0038, unpaged, 1 sheet, scale 1:4,000,000, available at http://www.dggs.dnr.state.ak.us/pubs/pubs?reqtype=citation&ID=7043 .

Revised geologic map of the Cold Bay and False Pass quadrangles, Alaska Peninsula, 1997
Wilson, F. H., Weber, F. R., Dochat, T. M., Miller, T. P., and Detterman, R. L., 1997, Revised geologic map of the Cold Bay and False Pass quadrangles, Alaska Peninsula: U.S. Geological Survey Open-File Report 97-0866, 34 p., 1 sheet, scale 1:250,000.
Volcanoes of Alaska, 1995
Alaska Division of Geological & Geophysical Surveys, 1995, Volcanoes of Alaska: Alaska Division of Geological & Geophysical Surveys Information Circular IC 0038, unpaged, 1 sheet, scale 1:4,000,000.
Geothermal resources of the Aleutian Arc, 1993
Motyka, R. J., Liss, S. A., Nye, C. J., and Moorman, M. A., 1993, Geothermal resources of the Aleutian Arc: Alaska Division of Geological & Geophysical Surveys Professional Report PR 0114, 17 p., 4 sheets, scale 1:1,000,000.

Preliminary geologic map of the Cold Bay and False Pass quadrangles, Alaska Peninsula, 1992
Wilson, F. H., Miller, T. P., and Detterman, R. L., 1992, Preliminary geologic map of the Cold Bay and False Pass quadrangles, Alaska Peninsula: U.S. Geological Survey Open-File Report 92-0545, 10 p., 1 plate, scale 1:250,000.
Map showing distribution, composition, and age of Late Cenozoic volcanic centers in Alaska, 1986
Luedke, R. G., and Smith, R. L., 1986, Map showing distribution, composition, and age of Late Cenozoic volcanic centers in Alaska: U.S. Geological Survey Miscellaneous Investigations Series Map I 1091-F, unpaged, 3 sheets, scale 1:1,000,000.
Reconnaissance geologic map of the Cold Bay and False Pass quadrangles, Alaska, 1978
McLean, H., Engelhardt, C. L., and Howell, D. G., 1978, Reconnaissance geologic map of the Cold Bay and False Pass quadrangles, Alaska: U.S. Geological Survey Open-File Report 78-0323, unpaged, 1 plate.
Geologic reconnaissance of Frosty Peak volcano and vicinity, Alaska, 1961
Waldron, H. H., 1961, Geologic reconnaissance of Frosty Peak volcano and vicinity, Alaska: in Investigations of Alaskan volcanoes, U.S. Geological Survey Bulletin 1028-T, p. 677-708, 1 plate, scale 1:250,000.



References
Proximity to active volcanoes enhances glacier velocity, 2024
Mallalieu, J., Barr, I.D., Spagnolo, M., Mullan, D.J., Symeonakis, E., Edwards, B.R., and Martin, M.D., 2024, Proximity to active volcanoes enhances glacier velocity: Communications Earth & Environment v. 5, 679. https://doi.org/10.1038/s43247-024-01826-5


Recently active volcanoes of Alaska, 2023
Cameron, C.E., Bull, K.F., and Macpherson, A.E., 2023, Recently active volcanoes of Alaska: Alaska Division of Geological & Geophysical Surveys Miscellaneous Publication 133 v. 6, 2 sheets. https://doi.org/10.14509/31086.
Alaska interagency operating plan for volcanic ash episodes, 2022
Alaska Volcano Observatory, National Oceanic and Atmospheric Administration, National Weather Service, Federal Aviation Administration, Department of Defense, United States Coast Guard, Division of Homeland Security and Emergency Management, Alaska Department of Environmental Conservation, and Alaska Department of Health and Social Services (participating agencies), 2022, Alaska interagency operating plan for volcanic ash episodes, 85 p.







Geologic database of information on volcanoes in Alaska (GeoDIVA), 2022
Cameron, C.E., Crass, S.W., and AVO Staff, eds, 2022, Geologic database of information on volcanoes in Alaska (GeoDIVA): Alaska Division of Geologic and Geophysical Surveys Digital Data Series 20, https://doi.org/10.14509/geodiva, https://doi.org/10.14509/30901.
Goals and development of the Alaska Volcano Observatory seismic network and application to forecasting and detecting volcanic eruptions, 2020
Power, J.A., Haney, M.M., Botnick, S.M., Dixon, J.P., Fee, David, Kaufman, A.M., Ketner, D.M., Lyons, J.J., Parker, Tom, Paskievitch, J.F., Read, C.W., Searcy, Cheryl, Stihler, S.D., Tepp, Gabrielle, and Wech, A.G., 2020, Goals and development of the Alaska Volcano Observatory seismic network and application to forecasting and detecting volcanic eruptions: Seismological Research Letters, doi: 10.1785/0220190216 .
Historically active volcanoes of Alaska, v. 4, 2020
Cameron, C.E., Schaefer, J.R., and Ekberg, P.G., 2020, Historically active volcanoes of Alaska: Alaska Division of Geological & Geophysical Surveys Miscellaneous Publication 133 v. 4, 2 sheets. Http://doi.org/10.14509/30426
Catalog of earthquake parameters and description of seismograph and infrasound stations at Alaskan volcanoes - January 1, 2013, through December 31, 2017, 2019
Dixon, J.P., Stihler S.D., Haney, M.M., Lyons, J.J., Ketner, D.M., Mulliken, K.M., Parker, T., and Power, J.A., 2019, Catalog of earthquake parameters and description of seismograph and infrasound stations at Alaskan volcanoes - January 1, 2013, through December 31, 2017: U.S. Geological Survey Data Series 1115, 92 p., https://doi.org/10.3133/ds1115.
A unified catalog of earthquake hypocenters and magnitudes at volcanoes in Alaska: 1989 to 2018, 2019
Power, J.A., Friberg, P.A., Haney, M.M., Parker, T., Stihler, S.D., and Dixon, J.P., 2019, A unified catalog of earthquake hypocenters and magnitudes at volcanoes in Alaska—1989 to 2018: U.S. Geological Survey Scientific Investigations Report 2019–5037, 17 p., https://doi.org/10.3133/sir20195037.
2018 update to the U.S. Geological Survey national volcanic threat assessment, 2018
Ewert, J.W., Diefenbach, A.K., and Ramsey, D.W., 2018, 2018 update to the U.S. Geological Survey national volcanic threat assessment: U.S. Geological Survey Scientific Investigations Report 2018-5140, 40 p., https://pubs.usgs.gov/sir/2018/5140/sir20185140.pdf.
Historically active volcanoes of Alaska, v. 3, 2018
Cameron, C.E., Schaefer, J.R., and Mulliken, K.M., 2018, Historically active volcanoes of Alaska: Alaska Division of Geological & Geophysical Surveys Miscellaneous Publication 133 v. 3, 2 sheets. Http://doi.org/10.14509/30142
Historically active volcanoes of Alaska, 2016
Cameron, C.E., and Schaefer, J.R., 2016, Historically active volcanoes of Alaska: Alaska Division of Geological & Geophysical Surveys Miscellaneous Publication 133 v. 2, 1 sheet, scale 1:3,000,000. http://doi.org/10.14509/20181
Alaska Volcano Observatory image database, 2016
Cameron, C.E., and Snedigar, S.F., 2016, Alaska Volcano Observatory image database: Alaska Division of Geological & Geophysical Surveys Digital Data Series 13, https://www.avo.alaska.edu/images/. https://doi.org/10.14509/29689.
Historically active volcanoes of Alaska, 2014
Schaefer, J.R., Cameron, C.E., and Nye, C.J., 2014, Historically active volcanoes of Alaska: Alaska Division of Geological & Geophysical Surveys Miscellaneous Publication 133 v. 1.2, 1 sheet, scale 1:3,000,000.
This publication has been superseded. Newest version available at http://www.dggs.alaska.gov/pubs/id/20181 .
Regional controls on volcano seismicity along the Aleutian Arc, 2014
Buurman, Helena, Nye, C.J., West, M.E., and Cameron, Cheryl, 2014, Regional controls on volcano seismicity along the Aleutian Arc: Geochemistry, Geophysics, Geosystems, doi:10.1002/2013GC005101

Preliminary database of Quaternary vents in Alaska, 2014
Cameron, C.E., and Nye, C.J., 2014, Preliminary database of Quaternary vents in Alaska: Alaska Division of Geological & Geophysical Surveys Miscellaneous Publication 153, 11 p., doi:10.14509/27357 .
InSAR imaging of Aleutian volcanoes, 2014
Lu, Zhong, and Dzurisin, Daniel, 2014, InSAR imaging of Aleutian volcanoes: Chichester, UK, Springer-Praxis, 390 p.
Catalog of earthquake hypocenters at Alaskan volcanoes: January 1 through December 31, 2012, 2013
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/ .


Catalog of earthquake hypocenters at Alaskan volcanoes: January 1 through December 31, 2011, 2012
Dixon, J.P., Stihler, S.D., Power, J.A., and Searcy, C.K., 2012, Catalog of earthquake hypocenters at Alaskan volcanoes: January 1 through December 31, 2011: U.S. Geological Survey Data Series 730, 82 p., available online at http://pubs.usgs.gov/ds/730/pdf/ds730.pdf .
Catalog of earthquake hypocenters at Alaskan volcanoes: January 1 through December 31, 2010, 2011
Dixon, J.P., Stihler, S.D., Power, J.A., and Searcy, C.K., 2011, Catalog of earthquake hypocenters at Alaskan volcanoes: January 1 through December 31, 2010: U.S. Geological Survey Data Series 645, 82 p., available online at http://pubs.usgs.gov/ds/645/
Catalog of earthquake hypocenters at Alaskan volcanoes: January 1 through December 31, 2009, 2010
Dixon, J.P., Stihler, S.D., Power, J.A., and Searcy, C.K., 2010, Catalog of earthquake hypocenters at Alaskan volcanoes: January 1 through December 31, 2009: U.S. Geological Survey Data Series 531, 84 p., available online at http://pubs.usgs.gov/ds/531/ .
Catalog of earthquake hypocenters at Alaskan volcanoes: January 1 through December 31, 2008, 2009
Dixon, J.P., and Stihler, S.D., 2009, Catalog of earthquake hypocenters at Alaskan volcanoes: January 1 through December 31, 2008: U.S. Geological Survey Data Series 467, 88 p., available at http://pubs.usgs.gov/ds/467/ .
Historically active volcanoes of Alaska reference deck, 2009
Snedigar, S.F., and Cameron, C.C., 2009, Historically active volcanoes of Alaska reference deck: Alaska Division of Geological & Geophysical Surveys Information Circular 59, 52 p, available to order from http://www.dggs.dnr.state.ak.us/pubs/pubs?reqtype=citation&ID=20401 .

Chronology and references of volcanic eruptions and selected unrest in the United States, 1980-2008, 2009
Diefenbach, A.K., Guffanti, Marianne, and Ewert, J.W., 2009, Chronology and references of volcanic eruptions and selected unrest in the United States, 1980-2008: U.S. Geological Survey Open-File Report 2009-1118, 85 p., available at http://pubs.usgs.gov/of/2009/1118/ .
Preliminary spreadsheet of eruption source parameters for volcanoes of the world, 2009
Mastin, L.G., Guffanti, Marianne, Ewert, J.E., and Spiegel, Jessica, 2009, Preliminary spreadsheet of eruption source parameters for volcanoes of the world: U.S. Geological Survey Open-File Report 2009-1133, v. 1.2, 25 p., available at http://pubs.usgs.gov/of/2009/1133/ .
Catalog of earthquake hypocenters at Alaskan volcanoes: January 1 through December 31, 2006, 2008
Dixon, J.P., Stihler, S.D., Power, J.A., and Searcy, Cheryl, 2008, Catalog of earthquake hypocenters at Alaskan volcanoes: January 1 through December 31, 2006: U.S. Geological Survey Data Series 326, 79 p., available at http://pubs.usgs.gov/ds/326/ .
The Alaska Volcano Observatory - 20 years of volcano research, monitoring, and eruption response, 2008
Schaefer, J.R., and Nye, Chris, 2008, The Alaska Volcano Observatory - 20 years of volcano research, monitoring, and eruption response: Alaska Division of Geological & Geophysical Surveys, Alaska GeoSurvey News, NL 2008-001, v. 11, n. 1, p. 1-9, available at http://wwwdggs.dnr.state.ak.us/pubs/pubs?reqtype=citation&ID=16061 .


Catalog of earthquake hypocenters at Alaskan volcanoes: January 1 through December 31, 2007, 2008
Dixon, J.P., Stihler, S.D. and Power, J.A., 2008, Catalog of earthquake hypocenters at Alaskan volcanoes: January 1 through December 31, 2007: U.S. Geological Survey Data Series 367, 82 p., available online at http://pubs.usgs.gov/ds/367/ .
System for ranking relative threats of U.S. volcanoes, 2007
Ewert, John, 2007, System for ranking relative threats of U.S. volcanoes: Natural Hazards Review, v. 8, n. 4, p. 112-124.

Catalog of earthquake hypocenters at Alaskan volcanoes: January 1 through December 31, 2005, 2006
Dixon, J.P., Stihler, S.D., Power, J.A., Tytgat, Guy, Estes, Steve, and McNutt, S.R., 2006, Catalog of earthquake hypocenters at Alaskan volcanoes: January 1 through December 31, 2005: U.S. Geological Survey Open-File Report 2006-1264, 78 p., available at http://pubs.usgs.gov/of/2006/1264/ .
The National Volcano Early Warning System (NVEWS), 2006
Ewert, John, Guffanti, Marianne, Cervelli, Peter, and Quick, James, 2006, The National Volcano Early Warning System (NVEWS): U.S. Geological Survey Fact Sheet FS 2006-3142, 2 p., available at http://pubs.usgs.gov/fs/2006/3142 .

March-April 2004, 2005
Alaska Volcano Observatory, 2005, March-April 2004: Alaska Volcano Observatory Bimonthly Report, v.16, n. 2, unpaged.
May-June 2004, 2005
Alaska Volcano Observatory, 2005, May-June 2004: Alaska Volcano Observatory Bimonthly Report, v. 16, n. 3, unpaged.
July-August 2004, 2005
Alaska Volcano Observatory, 2005, July-August 2004: Alaska Volcano Observatory Bimonthly Report, v. 16, n. 4, unpaged.
September-October 2004, 2005
Alaska Volcano Observatory, 2005, September-October 2004: Alaska Volcano Observatory Bimonthly Report, v. 16, n. 5, unpaged.
November-December 2004, 2005
Alaska Volcano Observatory, 2005, November-December 2004: Alaska Volcano Observatory Bimonthly Report, v. 16, n. 6, unpaged.
An assessment of volcanic threat and monitoring capabilities in the United States: framework for a National Volcano Early Warning System NVEWS, 2005
Ewert, J.W., Guffanti, Marianne, and Murray, T.L., 2005, An assessment of volcanic threat and monitoring capabilities in the United States: framework for a National Volcano Early Warning System NVEWS: U.S. Geological Survey Open-File Report 2005-1164, 62 p.


Catalog of earthquake hypocenters at Alaskan volcanoes: January 1 through December 31, 2004, 2005
Dixon, 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/.

July-August 2001, 2004
Alaska Volcano Observatory, 2004, July-August 2001: Alaska Volcano Observatory Bimonthly Report, v. 13, n. 4, unpaged.
September-October 2001, 2004
Alaska Volcano Observatory, 2004, September-October 2001: Alaska Volcano Observatory Bimonthly Report, v. 13, n. 5, unpaged.
November-December 2001, 2004
Alaska Volcano Observatory, 2004, November-December 2001: Alaska Volcano Observatory Bimonthly Report, v. 13, n. 6, unpaged.
January-February 2002, 2004
Alaska Volcano Observatory, 2004, January-February 2002: Alaska Volcano Observatory Bimonthly Report, v. 14, n. 1, unpaged.
March-April 2002, 2004
Alaska Volcano Observatory, 2004, March-April 2002: Alaska Volcano Observatory Bimonthly Report, v. 14, n. 2, unpaged.
May-June 2002, 2004
Alaska Volcano Observatory, 2004, May-June 2002: Alaska Volcano Observatory Bimonthly Report, v. 14, n. 3, unpaged.
July-August 2002, 2004
Alaska Volcano Observatory, 2004, July-August 2002: Alaska Volcano Observatory Bimonthly Report, v. 14, n. 4, unpaged.
September-October 2002, 2004
Alaska Volcano Observatory, 2004, September-October 2002: Alaska Volcano Observatory Bimonthly Report, v. 14, n. 5, unpaged.
November-December 2002, 2004
Alaska Volcano Observatory, 2004, November-December 2002: Alaska Volcano Observatory Bimonthly Report, v. 14, n. 6, unpaged.
January-February 2003, 2004
Alaska Volcano Observatory, 2004, January-February 2003: Alaska Volcano Observatory Bimonthly Report, v. 15, n. 1, unpaged.
March-April 2003, 2004
Alaska Volcano Observatory, 2004, March-April 2003: Alaska Volcano Observatory Bimonthly Report, v. 15, n. 2, unpaged.
May-June 2003, 2004
Alaska Volcano Observatory, 2004, May-June 2003: Alaska Volcano Observatory Bimonthly Report, v. 15, n. 3, unpaged.
July-August 2003, 2004
Alaska Volcano Observatory, 2004, July-August 2003: Alaska Volcano Observatory Bimonthly Report, v. 15, n. 4, unpaged.
September-October 2003, 2004
Alaska Volcano Observatory, 2004, September-October 2003: Alaska Volcano Observatory Bimonthly Report, v. 15, n. 5, unpaged.
Catalog of earthquake hypocenters at Alaskan volcanoes: January 1 through December 31, 2003, 2004
Dixon, J. P., Stihler, S. D., Power, J. A., Tytgat, Guy, Moran, S. C., Sanchez, J. J., McNutt, S. R., Estes, Steve, and Paskievitch, John, 2004, Catalog of earthquake hypocenters at Alaskan volcanoes: January 1 through December 31, 2003: U.S. Geological Survey Open-File Report 2004-1234, 69 p.


The Alaska Volcano Observatory - Expanded monitoring of volcanoes yields results, 2004
Brantley, 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.


January-February 2004, 2004
Alaska Volcano Observatory, 2004, January-February 2004: Alaska Volcano Observatory Bimonthly Report, v. 16, n. 1, unpaged.
November-December 2003, 2004
Alaska Volcano Observatory, 2004, November-December 2003: Alaska Volcano Observatory Bimonthly Report, v. 15, n. 6, unpaged.
Volcanoes of the world: an illustrated catalog of Holocene volcanoes and their eruptions, 2003
Siebert, L., and Simkin, T., 2002-, Volcanoes of the world: an illustrated catalog of Holocene volcanoes and their eruptions: Smithsonian Institution, Global Volcanism Program Digital Information Series GVP-3, http://volcano.si.edu/search_volcano.cfm, unpaged internet resource.
Bibliography of information on Alaska volcanoes, 2003
Cameron, C. E., Triplehorn, J. H., and Robar, C. L., 2003, Bibliography of information on Alaska volcanoes: Alaska Division of Geological & Geophysical Surveys Miscellaneous Publication MP 131, 1 CD-ROM.
Hard Copy held by AVO at FBKS - CEC file cabinet
Catalog of earthquake hypocenters at Alaskan volcanoes: January 1 through December 31, 2002, 2003
Dixon, J. P., Stihler, S. D., Power, J. A., Tytgat, Guy, Moran, S. C., Sanchez, John, Estes, Steve, McNutt, S. R., and Paskievitch, John, 2003, Catalog of earthquake hypocenters at Alaskan volcanoes: January 1 through December 31, 2002: U.S. Geological Survey Open-File Report 03-0267, 58 p.


Catalog of earthquake hypocenters at Alaskan volcanoes: January 1, 2000 through December 31, 2001, 2002
Dixon, J. P., Stihler, S. D., Power, J. A., Tytgat, Guy, Estes, Steve, Moran, S. C., Paskievitch, John, and McNutt, S. R., 2002, Catalog of earthquake hypocenters at Alaskan volcanoes: January 1, 2000 through December 31, 2001: U.S. Geological Survey Open-File Report 02-0342, 56 p.


Mafic-silicic magma interactions from volcanic to plutonic; implications for the evolution and eruption of silicic magma chambers, 2002
Chertkoff, D. G., 2002, Mafic-silicic magma interactions from volcanic to plutonic; implications for the evolution and eruption of silicic magma chambers: University of Alaska Fairbanks unpublished Ph.D. dissertation, 377 p.

Historically active volcanoes of the Aleutian Arc, 2002
Schaefer, Janet, and Nye, C. J., 2002, Historically active volcanoes of the Aleutian Arc: Alaska Division of Geological & Geophysical Surveys Miscellaneous Publication MP 0123, unpaged, 1 sheet, scale 1:3,000,000. Superceded by Miscellaneous Publication 133: http://www.dggs.dnr.state.ak.us/pubs/pubs?reqtype=citation&ID=20181

Catalog of earthquake hypocenters at Alaskan volcanoes: January 1, 1994 through December 31, 1999, 2001
Jolly, A. D., Stihler, S. D., Power, J. A., Lahr, J. C., Paskievitch, John, Tytgat, Guy, Estes, Steve, Lockheart, A. D., Moran, S. C., McNutt, S. R., and Hammond, W. R., 2001, Catalog of earthquake hypocenters at Alaskan volcanoes: January 1, 1994 through December 31, 1999: U.S. Geological Survey Open-File Report 01-0189, 22 p.



Historically active volcanoes in Alaska, a quick reference, 2000
Wallace, K. L., McGimsey, R. G., and Miller, T. P., 2000, Historically active volcanoes in Alaska, a quick reference: U.S. Geological Survey Fact Sheet FS 0118-00, 2 p.


January-February 2000, 2000
Alaska Volcano Observatory, 2000, January-February 2000: Alaska Volcano Observatory Bimonthly Report, v. 12, n. 1, 28 p.




Composite focal mechanisms at four Alaskan volcanoes, 2000
McNutt, S. R., and Sanchez, J. J., 2000, Composite focal mechanisms at four Alaskan volcanoes [abs.]: Seismological Research Letters, v. 71, n. 2, p. 250-251.
Mount Dutton volcano, Alaska: Aleutian arc analog to Unzen volcano, Japan, 1999
Miller, T. P., Chertkoff, D. G., Eichelberger, J. C., and Coombs, M. L., 1999, Mount Dutton volcano, Alaska: Aleutian arc analog to Unzen volcano, Japan: in Nakada, S., Eichelberger, J. C., and Shimizu, H., (eds.), Unzen eruption: Magma ascent and dome growth, Journal of Volcanology and Geothermal Research, v. 89, n. 1, p. 275-301.

January-April 1999, 1999
Alaska Volcano Observatory, 1999, January-April 1999: Alaska Volcano Observatory Bimonthly Report, v. 11, n. 1 and 2, 30 p.




May-August 1999, 1999
Alaska Volcano Observatory, 1999, May-August 1999: Alaska Volcano Observatory Bimonthly Report, v. 11, n. 3 and 4, 39 p.






September-December 1999, 1999
Alaska Volcano Observatory, 1999, September-December 1999: Alaska Volcano Observatory Bimonthly Report, v. 11, n. 5 and 6, 51 p.




Volcanoes of Alaska, 1998
Nye, C. J., Queen, Katherine, and McCarthy, A. M., 1998, Volcanoes of Alaska: Alaska Division of Geological & Geophysical Surveys Information Circular IC 0038, unpaged, 1 sheet, scale 1:4,000,000, available at http://www.dggs.dnr.state.ak.us/pubs/pubs?reqtype=citation&ID=7043 .

Catalog of the historically active volcanoes of Alaska, 1998
Miller, T. P., McGimsey, R. G., Richter, D. H., Riehle, J. R., Nye, C. J., Yount, M. E., and Dumoulin, J. A., 1998, Catalog of the historically active volcanoes of Alaska: U.S. Geological Survey Open-File Report 98-0582, 104 p.



January-April 1998, 1998
Alaska Volcano Observatory, 1998, January-April 1998: Alaska Volcano Observatory Bimonthly Report, v. 10, n. 1 and 2, 35 p.




May-August 1998, 1998
Alaska Volcano Observatory, 1998, May-August 1998: Alaska Volcano Observatory Bimonthly Report, v. 10, n. 3 and 4, 43 p.




September-December 1998, 1998
Alaska Volcano Observatory, 1998, September-December 1998: Alaska Volcano Observatory Bimonthly Report, v. 10, n. 5 and 6, 51 p.






Revised geologic map of the Cold Bay and False Pass quadrangles, Alaska Peninsula, 1997
Wilson, F. H., Weber, F. R., Dochat, T. M., Miller, T. P., and Detterman, R. L., 1997, Revised geologic map of the Cold Bay and False Pass quadrangles, Alaska Peninsula: U.S. Geological Survey Open-File Report 97-0866, 34 p., 1 sheet, scale 1:250,000.
Mafic enclave formation and effusive eruption at two Aleutian arc volcanoes, 1997
Coombs, M. L., Chertkoff, D. G., and Eichelberger, J. C., 1997, Mafic enclave formation and effusive eruption at two Aleutian arc volcanoes [abs.]: Eos, v. 78, n. 46, p. 828.
Hard Copy held by AVO at FBKS - CEC file cabinet
Volcanoes of the Alaska Peninsula and Aleutian Islands selected photographs, 1997
Neal, 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.

January-April 1997, 1997
Alaska Volcano Observatory, 1997, January-April 1997: Alaska Volcano Observatory Bimonthly Report, v. 9, n. 1 and 2, 51 p.




May-June 1997, 1997
Alaska Volcano Observatory, 1997, May-June 1997: Alaska Volcano Observatory Bimonthly Report, v. 9, n. 3, 23 p.


July-August 1997, 1997
Alaska Volcano Observatory, 1997, July-August 1997: Alaska Volcano Observatory Bimonthly Report, v. 9, n. 4, 31 p.




September-December 1997, 1997
Alaska Volcano Observatory, 1997, September-December 1997: Alaska Volcano Observatory Bimonthly Report, v. 9, n. 5 and 6, 17 p.



Magma mixing at Mt. Dutton, Alaska: a model for dome-building eruptions, 1996
Chertkoff, D. G., 1996, Magma mixing at Mt. Dutton, Alaska: a model for dome-building eruptions [abs.]: Eos, v. 77, n. 46, p. 770.
Hard Copy held by AVO at FBKS - CEC file cabinet
The AVO central Aleutian expansion: seismic monitoring and instrumentation, 1996
Hammond, W. R., Paskievitch, J. F., Power, J. A., Lockhart, A. B., Estes, S. A., Tytgat, G. C., and Benevento, J., 1996, The AVO central Aleutian expansion: seismic monitoring and instrumentation [abs.]: Eos, v. 77, n. 46, p. 451-452.
Stratigraphic framework of the Alaska Peninsula, 1996
Detterman, R. L., Case, J. E., Miller, J. W., Wilson, F. H., and Yount, M. E., 1996, Stratigraphic framework of the Alaska Peninsula: U.S. Geological Survey Bulletin 1969-A, 74 p.


Seismological evidence concerning Aleutian Arc magma systems, 1995
McNutt, S. R., 1995, Seismological evidence concerning Aleutian Arc magma systems [abs.]: Abstracts with Programs - Geological Society of America, v. 27, n. 5, p. 64.
Quick reference to Alaska's active volcanoes and listing of historical eruptions, 1760-1994, 1995
McGimsey, R. G., and Miller, T. P., 1995, Quick reference to Alaska's active volcanoes and listing of historical eruptions, 1760-1994: U.S. Geological Survey Open-File Report 95-0520, 13 p.
Hard Copy held by AVO at FBKS - CEC file cabinet
Volcanoes of Alaska, 1995
Alaska Division of Geological & Geophysical Surveys, 1995, Volcanoes of Alaska: Alaska Division of Geological & Geophysical Surveys Information Circular IC 0038, unpaged, 1 sheet, scale 1:4,000,000.
Age, character, and significance of Aleutian arc volcanism, 1994
Fournelle, J. H., Marsh, B. D., and Myers, J. D., 1994, Age, character, and significance of Aleutian arc volcanism: in Plafker, George and Berg, H. C., (eds.), The Geology of Alaska, Geological Society of America The Geology of North America Series v. G-1, p. 723-758.

Aleutian magmas in space and time, 1994
Kay, S. M., and Kay, R. W., 1994, Aleutian magmas in space and time: in Plafker, George and Berg, H. C., (eds.), The Geology of Alaska, Geological Society of America The Geology of North America series v. G-1, p. 687-722.
Hard Copy held by AVO at FBKS - CEC file cabinet
Overview of Quaternary glacial, volcanic, and tectonic interactions on the Alaska Peninsula, 1994
Wilson, F. H., 1994, Overview of Quaternary glacial, volcanic, and tectonic interactions on the Alaska Peninsula [abs.]: Abstracts with Programs - Geological Society of America, v. 26, n. 7, p. 137.
Volcanoes of the world [2nd edition], 1994
Simkin, Tom, and Siebert, Lee, 1994, Volcanoes of the world [2nd edition]: Tucson, Arizona, Geoscience Press, 349 p.
Hard Copy held by AVO at FBKS - CEC shelf
Quaternary volcanism in the Alaska Peninsula and Wrangell Mountains, Alaska, 1994
Miller, T. P., and Richter, D. H., 1994, Quaternary volcanism in the Alaska Peninsula and Wrangell Mountains, Alaska: in Plafker, George, Jones, D. L., and Berg, H. C., (eds.), The Geology of Alaska, Geological Society of America The Geology of North America series v. G-1, p. 759-779.
Hard Copy held by AVO at FBKS - CEC file cabinet
Geothermal resources of the Aleutian Arc, 1993
Motyka, R. J., Liss, S. A., Nye, C. J., and Moorman, M. A., 1993, Geothermal resources of the Aleutian Arc: Alaska Division of Geological & Geophysical Surveys Professional Report PR 0114, 17 p., 4 sheets, scale 1:1,000,000.

Preliminary geologic map of the Cold Bay and False Pass quadrangles, Alaska Peninsula, 1992
Wilson, F. H., Miller, T. P., and Detterman, R. L., 1992, Preliminary geologic map of the Cold Bay and False Pass quadrangles, Alaska Peninsula: U.S. Geological Survey Open-File Report 92-0545, 10 p., 1 plate, scale 1:250,000.
Mt. Dutton, 1991
Staff, 1991, Mt. Dutton: in Annual report of the world volcanic eruptions in 1988, Bulletin of Volcanic Eruptions, v. 28, p. 97-98.
Hard Copy held by AVO at FBKS - CEC file cabinet
Alaska Volcano Observatory summary report: January 1, 1991 - February 28, 1991, 1991
Neal, C., and Power, J. (compilers), 1991, Alaska Volcano Observatory summary report: January 1, 1991 - February 28, 1991: Alaska Volcano Observatory bimonthly report series, 13 p.


Alaska Volcano Observatory summary report: March 1, 1991 - April 30, 1991, 1991
Neal, C.A. (compiler), 1991, Alaska Volcano Observatory summary report: March 1, 1991 - April 30, 1991: Alaska Volcano Observatory bimonthly report series, 19 p.

Alaska Volcano Observatory summary report: May 1, 1991 - June 30, 1991, 1991
Neal, 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
Neal, C.A. (compiler), 1991, Alaska Volcano Observatory summary report: September 1, 1991 - October 31, 1991: Alaska Volcano Observatory bimonthly report series, 7 p.

The Alaska Volcano Observatory: a multisite, multiagency consortium for volcano monitoring and research, 1990
Davies, J. N., Miller, T. P., Power, J. A., and Forbes, R. B., 1990, The Alaska Volcano Observatory: a multisite, multiagency consortium for volcano monitoring and research [abs.]: Eos, v. 71, n. 43, p. 1709.
Volcanoes of North America: United States and Canada, 1990
Wood, C. A., and Kienle, Juergen, (eds.), 1990, Volcanoes of North America: United States and Canada: New York, Cambridge University Press, 354 p.
Hard Copy held by AVO at FBKS - CEC shelf
Alaska Volcano Observatory summer report: June 1, 1990 - September 30, 1990, 1990
Neal, C., and Power, J. (compilers), 1990, Alaska Volcano Observatory summer report: June 1, 1990 - September 30, 1990: Alaska Volcano Observatory bimonthly report series, 38 p.

Reconnaissance geology and exploration geochemistry of King Cove, Alaska Peninsula, 1989
DuBois, G. D., Wilson, F. H., Detterman, R. L., and Hopkins, R. T., 1989, Reconnaissance geology and exploration geochemistry of King Cove, Alaska Peninsula: U.S. Geological Survey Open-File Report 89-0352, 23 p.

Seismicity and geology of Mount Dutton, a volcano near the tip of the Alaska Peninsula, 1988
Davies, J. N., Taber, John, and Miller, T. P., 1988, Seismicity and geology of Mount Dutton, a volcano near the tip of the Alaska Peninsula [abs.]: Eos, v. 69, n. 44, p. 1507.
Dutton, 1988
Smithsonian Institution, 1988, Dutton: Scientific Event Alert Network Bulletin v. 13, n. 07, unpaged.
Dutton, 1988
Smithsonian Institution, 1988, Dutton: Scientific Event Alert Network Bulletin v. 13, n. 08, unpaged.
Seismicity and geology of Mt. Dutton, a volcano near the tip of the Alaska Peninsula, 1988
Davies, J.N., Taber, J., and Miller, T.P., 1988, Seismicity and geology of Mount Dutton, a volcano near the tip of the Alaska Peninsula [abs.]: EOS: Transactions American Geophysical Union, v. 69, n. 44, p. 1507.
Geothermal resources, 1987
Lister, C. R. B., 1987, Geothermal resources: in Scholl, D. W., Grantz, Arthur, and Vedder, J. G., (eds.), Geology and resource potential of the continental margin of western North America and adjacent ocean basins - Beaufort Sea to Baja California, v. 6, Houston Texas, Circum-Pacific council for energy and mineral resources, Earth Science Series, p. 739-751.
Three volcanoes erupt in Alaska, 1987
Miller, T. P., 1987, Three volcanoes erupt in Alaska: Earthquakes and Volcanoes, v. 19, n. 6, p. 192-198.
Hard Copy held by AVO at FBKS - CEC file cabinet
Late Quaternary caldera-forming eruptions in the eastern Aleutian arc, Alaska, 1987
Miller, T. P., and Smith, R. L., 1987, Late Quaternary caldera-forming eruptions in the eastern Aleutian arc, Alaska: Geology, v. 15, n. 5, p. 434-438.


Map showing distribution, composition, and age of Late Cenozoic volcanic centers in Alaska, 1986
Luedke, R. G., and Smith, R. L., 1986, Map showing distribution, composition, and age of Late Cenozoic volcanic centers in Alaska: U.S. Geological Survey Miscellaneous Investigations Series Map I 1091-F, unpaged, 3 sheets, scale 1:1,000,000.
Late Quaternary glaciation of the Pavlof Bay and Port Moller areas, Alaska Peninsula, 1985
Weber, F. R., 1985, Late Quaternary glaciation of the Pavlof Bay and Port Moller areas, Alaska Peninsula: in Bartsch-Winkler, Susan, (ed.), The United States Geological Survey in Alaska: accomplishments during 1984, U.S. Geological Survey Circular C 0967, p. 42-44.
Petrology and geochemistry of the Cold Bay volcanic center, Alaska Peninsula, southwestern Alaska, 1983
Brophy, J. G., and Marsh, B. D., 1983, Petrology and geochemistry of the Cold Bay volcanic center, Alaska Peninsula, southwestern Alaska [abs.]: Abstracts with Programs - Geological Society of America, v. 15, n. 6, p. 534.
High-temperature hydrothermal resources in the Aleutian arc, 1983
Motyka, R. J., 1983, High-temperature hydrothermal resources in the Aleutian arc: in Proceedings of Alaska Geological Society Symposium on western Alaska geology and resource potential, Journal of Alaska Geological Society, v. 3, p. 87-99.
Historical activity of Pavlov volcano, 1983
Shackelford, D. C., 1983, Historical activity of Pavlov volcano: Volcano News, v. 14, p. 5-6.
Reconnaissance of thermal spring sites in the Aleutian Arc, Atka Island to Becharof Lake, 1981
Motyka, R. J., and Moorman, M. A., 1981, Reconnaissance of thermal spring sites in the Aleutian Arc, Atka Island to Becharof Lake: in Geothermal Resources Council Transactions, v. 5, p. 111-114.
Assessment of thermal springs sites, Aleutian arc, Atka Island to Becharof Lake-preliminary results and evaluation, 1981
Motyka, R. J., Moorman, M. A., and Liss, S. A., 1981, Assessment of thermal springs sites, Aleutian arc, Atka Island to Becharof Lake-preliminary results and evaluation: Alaska Division of Geological & Geophysical Surveys Open-File Report AOF 0144, 173 p.
Hard Copy held by AVO at FBKS - CEC shelf
Hydrothermal convection systems with reservoir temperatures < 90 deg C, 1979
Brook, C. A., Mariner, R. H., Mabey, D. R., Swanson, J. R., Guffanti, Marianne, and Muffler, L. J. P., 1979, Hydrothermal convection systems with reservoir temperatures < 90 deg C: in Muffler, L. J. P., (ed.), Assessment of geothermal resources of the United States--1978, U.S. Geological Survey Circular C 0790, p. 18-85.
Geology of Amak Island, Aleutian Islands, Alaska, 1979
Marsh, B. D., and Leitz, R. E., 1979, Geology of Amak Island, Aleutian Islands, Alaska: Journal of Geology, v. 87, n. 6, p. 715-723.

Igneous-related geothermal systems, 1979
Smith, R. L., and Shaw, H. R., 1979, Igneous-related geothermal systems: in Muffler, L. J. P., (ed.), Assessment of geothermal resources of the United States 1978, U.S. Geological Survey Circular C 790, p. 12-17.
Comprehensive tables giving physical data and thermal energy estimates for young igneous systems of the United States, 1978
Smith, R. L., Shaw, H. R., Luedke, R. G., and Russell, S. L., 1978, Comprehensive tables giving physical data and thermal energy estimates for young igneous systems of the United States: U.S. Geological Survey Open-File Report 78-0925, p. 1-25.
Hard Copy held by AVO at FBKS - CEC shelf
Reconnaissance geologic map of the Cold Bay and False Pass quadrangles, Alaska, 1978
McLean, H., Engelhardt, C. L., and Howell, D. G., 1978, Reconnaissance geologic map of the Cold Bay and False Pass quadrangles, Alaska: U.S. Geological Survey Open-File Report 78-0323, unpaged, 1 plate.
Late Quaternary geology of Cold Bay, Alaska, and vicinity, 1973
Funk, J. M., 1973, Late Quaternary geology of Cold Bay, Alaska, and vicinity: University of Connecticut unpublished M.S. thesis, 45 p.

The late Quaternary history of Cold Bay, Alaska and its implications to the configuration of the Bering Land Bridge, 1973
Funk, J. M., 1973, The late Quaternary history of Cold Bay, Alaska and its implications to the configuration of the Bering Land Bridge [abs.]: Abstracts with Programs - Geological Society of America, v. 5, n. 2, p. 162.
Geologic reconnaissance of Frosty Peak volcano and vicinity, Alaska, 1961
Waldron, H. H., 1961, Geologic reconnaissance of Frosty Peak volcano and vicinity, Alaska: in Investigations of Alaskan volcanoes, U.S. Geological Survey Bulletin 1028-T, p. 677-708, 1 plate, scale 1:250,000.



Geology of Pavlof Volcano and vicinity, 1955
Kennedy, G. C., and Waldron, H. H., 1955, Geology of Pavlof Volcano and vicinity: U.S. Geological Survey Alaskan Volcano Investigations Report 0002, p. 7-18.
Past volcanic activity in the Aleutian arc,
Coats, R. R., Past volcanic activity in the Aleutian arc: U.S. Geological Survey Volcano Investigations Report 1, 18 p.

