Rich D. Koehler
Nevada Bureau of Mines and Geology
Mackay School of Earth Sciences and Engineering
University of Nevada, Reno
Business telephone: (775) 682-8763
Fax: (775) 784-1709
• PhD, University of Nevada, Reno, 2009
• MS, Humboldt State University, 1997
• BA, University of California, Santa Cruz, 1992
Areas of Expertise
• Neotectonics, paleoseismology, earthquake geology
• Quaternary geology, stratigraphy, geomorphology, soils
• Engineering geology, geologic hazard assessment
• Seismic source characterization
• Extensive field experience in Nevada, California, and Alaska
Professional Work Experience
• Assistant Professor, Nevada Bureau of Mines and Geology, University of Nevada,
Reno, Mackay School of Earth Sciences and Engineering (2015–date)
• Adjunct Faculty, Humboldt State University (2009–date)
• Senior Earthquake Geologist, State of Alaska, Dept. of Geological & Geophysical
• Research Assistant, Center for Neotectonic Studies (2004–2009)
• William Lettis & Associates, Inc., Walnut Creek, CA, Project Geologist (1999–2004)
• US Geological Survey, project paleoseismologist, Puget Sound, Wa (1998–2003)
Koehler, R.D., and Wesnousky, S,G., 2011, Late Pleistocene regional extension rate derived from
earthquake geology of late Quaternary faults across Great Basin, Nevada between 38.50 and
400 N latitude, Geological Society of America Bulletin, v. 123, no. 3-4, p. 631–650,
Turner, R., Koehler, R.D., Briggs, R.W., and Wesnousky, S.G., 2008, Paleoseismic and slip rate
observations along the Honey Lake Fault, northeastern California, Bulletin of the Seismological
Society of America, Vo. 98, No. 4.
Koehler, R.D., Mann, P., Prentice, C.S., Grandison-Wiggins, M., Bedford, B., and Brown, L., 2012,
The Enriquillo-Plantain Garden fault in Jamaica: paleoseismology and seismic hazard, Bulletin of the
Seismological Society of America, v. 103, issue 2a.
Koehler, R.D., Farrell, R-E, Burns, P., and Combellick, R., 2012, Quaternary faults and folds of
Alaska: A digital database, Miscellaneous Publication MP 141, Alaska Division of Geological and
Koehler, R.D., 2013, Alaska’s Quaternary Faults and Folds (QFF): Digital Data Series DDS 3, Alaska
Division of Geological & Geophysical Surveys, Fairbanks, AK, USA.
Koehler, R.D., and Woods, R-E, 2013, Paleoseismic and lidar investigations along the Cathedral
Rapids and Dot “T” Johnson faults, Interior Alaska: Report of Investigations 2013-4, Alaska,
Division of Geological & Geophysical Surveys.
Koehler, R.D., and Carver, G.A., 2012, Active and potentially active faults along the Alaska Highway
corridor, Tetlin Junction to the Canada border, Alaska Division of Geological & Geophysical Surveys,
Preliminary Interpretive Report, PIR 2012-2.
Koehler, R.D., and Mann, P., 2011, Field observations from the 12 January 2010 Haiti earthquake:
Implications for seismic hazards and future post-earthquake reconnaissance investigations in
Alaska, Report of Investigations 2011-2, Alaska Division of Geological & Geophysical Surveys.
Koehler, R.D., Personius, S.F., Haeussler, P.J., Schwarz, D., and Seitz, G., 2011, A paleoseismic
study along the central Denali fault, Chistochina Glacier area, south-central Alaska, Report of
Investigation 2011-1, Alaska Division of Geological and Geophysical Surveys,
Prentice, C., Mann, P., Crone, A.J., Gold, R.D., Hudnut, K.W., Briggs, R.W., Koehler, R.D., Jean, P.,
2010, Seismic hazard of the Enriquillo-Plantain Garden fault in Haiti inferred from paleoseismology,
Nature Geoscience, doi: 10.1038/ngeo991.
Kelson, K.I., A.R. Streig, R.D. Koehler, and Keng-Hao Kang, 2006, Timing of Late Holocene
Paleoearthquakes on the Northern San Andreas Fault at the Fort Ross Orchard Site, Sonoma
County, California, Bulletin of the Seismological Society of America, 96, p. 1012–1028.
Witter, R.C., Knudsen, K.L., Sowers, J.M., Wentworth, C.M., Koehler, R.D., and Randolph C.E. with
digital database by Wentworth, C.M, Brooks, S.K., and Gans, K.D., 2006, Maps of Quaternary
Deposits and Liquefaction Susceptibility in the Central San Francisco Bay Region, California, U.S.
Geological Survey, Open-File Report 2006-1037, Version 1.1.
Witter, R.C., Carver, G.A., Briggs, R., Gelfenbaum, G., Koehler, R.D., La Selle, S.P., Bender, A.,
Engelhart, S.E., and Hemphill-Haley, E., (2015), Unusually large tsunamis frequent a currently
creeping part of the Aleutian megathrust, Geophysical Research Letters, v. 43, Issue 1, p. 76–84.
Reger, R.D., Stevens, D.S.P., and Koehler, R.D., 2015, Surficial geology of the Tyonek area, south-
central Tyonek Quadrangle, Alaska: Alaska Division of Geological & Geophysical Surveys Report of
Investigations 2015-7, 38 p. 1 sheet, scale 1:63,360. doi 10.14509/29471
Christophersen, A., and 26 others (2015), Development of the Global Earthquake Model’s neotectonic
fault database, Natural Hazards.
Suleimani, E.N., Nicolsky, D.J., and Koehler, R.D., (2015), Tsunami inundation maps of Elfin Cove,
Gustavus, and Hoonah, Alaska, Alaska Division of Geological & Geophysical Surveys, Report of
Nicolsky, D.J., Suleimani, E.N., Freymueller, J.T., and Koehler, R.D., (2015) Tsunami inundation maps
of Fox Islands communities, including Dutch Harbor and Akutan, Alaska, Alaska Division of Geological
& Geophysical Surveys, Report of Investigation 2015-5, 67 p., 2 sheets, scale 1:12,500.
Witter, R.C., Briggs, R.W., Engelhart, S.E., Gelfenbaum, G., Koehler, R.D., and Barnhart, W., 2014,
Little late Holocene strain accumulation and release on the Aleutian megathrust below the
Shumagin Islands, Alaska, Geophysical Research Letters, 41, doi:10.1002/2014GL059393.
Bemis, S., Carver, G.A., and Koehler, R.D., 2012, The Quaternary thrust system of the Northern
Alaska Range, Geosphere, v. 8, no. 1, p. 1–10.
Johnson, S.Y., A.R. Nelson, S.F. Personius, R.E. Wells, H.M. Kelsey, B.L. Sherrod, K. Okumura, R.
Koehler, III, R. Witter, L. Bradley, and D.J. Harding, 2004, Evidence for late Holocene earthquakes
on the Utsalady Point fault, northern Puget Lowland, Washington, Bulletin of the Seismological
Society of America, V. 94, No. 6.
Nelson, A.R., Johnson S.Y., Kelsey, H.M., Wells, R.E., Sherrod, B.L., Pezzopane, S.K., Bradley, L.A.,
Koehler, R.D., and Bucknam, R.C., 2003, Late Holocene Earthquakes on the Toe Jam Hill Fault,
Seattle Fault Zone, Bainbridge Island, Washinghton, Geological Society of America Bulletin, v. 115,
no. 11, p. 1388–1403.