Slope Instability Hazards

Geologic hazards are often interrelated. This is especially true for unstable slopes. Slopes may become unstable for a variety of reasons such as the character of a geologic formation or the occurrence of earthquakes, rain, fire, melting permafrost, or rapid deglaciation. In addition, rapid down slope movement of large quantities of material into or under water can generate tsunamis. Surficial and engineering geologic maps and geologic hazard reports often contain information about landslides in an area.

Below is a list of publications related to Slope Instability Hazards. Select a publication number to access more detailed information and their respective files available for download.

RI 2014-1B

Suleimani, E.N., Nicolsky, D.J., and Salisbury, J.B., 2022, Updated tsunami inundation maps for Cordova, Alaska, in Nicolsky, D.J., Suleimani, E.N., and Koehler, R.D., Tsunami inundation maps of Cordova and Tatitlek, Alaska: Alaska Division of Geological & Geophysical Surveys Report of Investigation 2014-1B, 26 p., 6 sheets. https://doi.org/10.14509/30868

RI 2017-7

Stewart, A.K., Heinrich, C.E., and Hubbard, T.D., 2017, Dendrogeomorphic evidence of frequent mass movement using reaction wood in black spruce: Alaska Highway milepost 1267, Northway Junction, Alaska: Alaska Division of Geological & Geophysical Surveys Report of Investigation 2017-7, 18 p. https://doi.org/10.14509/29734

PIR 2017-1

Hubbard, T.D., 2017, Slope instability drilling program, Tonsina Hill, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2017-1, 36 p. https://doi.org/10.14509/29710

PIR 2002-3

Stevens, D.S.P., 2014, Engineering-geologic map of the Dalton Highway from Galbraith Lake to Slope Mountain, southern Arctic Foothills, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2002-3, 1 sheet, scale 1:63,360. https://doi.org/10.14509/25486

Daanen, R.P. and others, 2013

Daanen, R.P., Darrow, M.M., and Hubbard, T.D., 2013, Frozen debris lobe stability, a function of thermal and hydrological processes (poster): American Geophysical Union, Fall Meeting, San Francisco, California, December 13, 2013: Alaska Division of Geological & Geophysical Surveys, 1 sheet. https://doi.org/10.14509/26886

PIR 2013-6

Koehler, R.D., Reger, R.D., Sicard, K.R., and Spangler, E.R., 2013, Yukon River bridge landslide: Preliminary geologic and geotechnical evaluation: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2013-6, 69 p. https://doi.org/10.14509/25642

Kinsman, N.E.M., 2013

Kinsman, N.E.M., 2013, Alaska Local Tidal Datums: An Introduction for non-experts (presentation): Alaska Native Tribal Health Consortium Local Environmental Observer (LEO) Network Seminar Series, Online, March 2013: Alaska Division of Geological & Geophysical Surveys, 19 p. https://doi.org/10.14509/26885

PIR 2012-1B

Hubbard, T.D., Reger, R.D., and Gallagher, P.E., 2013, Engineering - geologic map of the Alaska Highway corridor, Tetlin Junction to Canada border, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2012-1B, 2 sheets, scale 1:63,360. https://doi.org/10.14509/24624