qfaults web comp As of January 12, 2017, the USGS maintains a limited number of metadata fields that characterize the Quaternary faults and folds of the United States. For the most up-to-date information, please refer to the interactive fault map.

Ragged Mountain fault, (Class A) No. 5132

Last Review Date: 2012-07-01

Compiled in cooperation with the Alaska Department of Natural Resources

County(s) and State(s) VALDEZ-CORDOVA CENSUS AREA, ALASKA
Physiographic province(s) PACIFIC BORDER RANGES (offshore)
Reliability of location
Compiled at 1:250,000 scale.
Length (km) 66 km.
Average strike S. 8° E.
Sense of movement Reverse
Dip Direction W
Historic earthquake
Most recent prehistoric deformation latest Quaternary (<15 ka)
Slip-rate category Between 1.0 and 5.0 mm/yr
References Brocher, T.M., Fuis, G.S., Fisher, M.A., Plafker, G., and Moses, M.J., 1994, Mapping the megathrust beneath the northern Gulf of Alaska using wide-angle seismic data: Journal of Geophysical Research, v. 99, no. B6, p. 11,663-11,685.

Brogan, G.E., Cluff, L.S., Korringa, M.K., and Slemmons, D.B., 1975, Active faults in Alaska: Tectonophysics, v. 29, p. 73–85.

Bruns, T.R., 1979, Late Cenozoic structure of the continental margin, northern Gulf of Alaska, in Sisson, A., ed., The relationship of plate tectonics to Alaskan geology and resources: Anchorage, Alaska Geological Society, p. I 1–30.

Carlson, P.R., Bruns, T.R., Molnia, B.F., and Schwab, W.C., 1982, Submarine valleys in the northeastern Gulf of Alaska: Characteristics and probable origin: Marine Geology, v. 47, p. 217-242.

Dames & Moore, 1991, Geologic and Seismic Studies, Trans-Alaska gas system, Anderson Bay LNG terminal, Port Valdez, Alaska.

Haeussler, P.J., 2008, An overview of the neotectonics of interior Alaska—Far-field deformation from the Yakutat microplate collision, in Freymueller, J.T., Haeussler, P.J., Wesson, R.L., and Ekström, G., eds., Active tectonics and seismic potential of Alaska: Washington, D.C., American Geophysical Union Geophysical Monograph Series 179, p. 83–108.

Kachadoorian, R., 1960, Engineering geology of the Katalla area, Alaska: U.S. Geological Survey Miscellaneous Geologic Investigations I-308, scale 1:63,360.

Koehler, R.D., Farrell, R-E., Burns, P.A.C., and Combellick, R.A., 2012, Quaternary faults and tolds in Alaska—A digital database: Alaska Division of Geophysical and Geophysical Surveys Miscellaneous Publication 141, 31 p, 1 sheet, scale 1:3,700,000. doi:10.14509/23944.

Nakamura, K., 1980, A tectonic stress trajectory map of Alaska using information from volcanoes and faults: Bulletin of the Earthquake Research Institute, v. 55, p. 89–100.

Nelson, S.W., Dumoulin, J.A., and Miller, M.L., 1985, Geologic map of the Chugach National Forest, Alaska: U.S. Geological Survey Miscellaneous Field Studies MF-1645-B, 16 p., 1 sheet, 1:250,000 scale.

Packer, D.R., Brogan, G.E., and Stone, D.B., 1975, New data on plate tectonics of Alaska: Tectonophysics, v. 29, p. 87-102.

Plafker, G., 1967, Geologic map of the Gulf of Alaska Tertiary province, Alaska: U.S. Geological Survey Miscellaneous Geologic Investigations I-484, 1 sheet, scale 1:500,000.

Plafker, G., 1967, Surface faults on Montague Island associated with the 1964 Alaska Earthquake: U.S. Geological Survey Professional Paper 43-G, 42 p., 2 sheets, 1:31,680 scale.

Plafker, G., Bruns, T.R., and Page, R.A., 1975, Interim report on petroleum resource potential and geologic hazards in the outer continental shelf of the Gulf of Alaska Tertiary province: U.S. Geological Survey Open File Report 75-592, 74 p., 1 sheet, approximately 1:190080 scale.

Plafker, G., Gilpin, L.M., and Lahr, J.C., 1994, Neotectonic map of Alaska, in Plafker, G., and Berg, H.C., eds., Geology of Alaska, Geology of North America, in Decade of North American Geology: Boulder, Geological Society of America, v. G-1, plate 12, 1 sheet, 1:2,500,000 scale.

Tuthill, S.J., and Laird, W.M., 1966, Geomorphic effects of the earthquake of March 27, 1964 in the Martin-Bering Rivers area, Alaska: U.S. Geological Survey Professional Paper 543-B, 29 p.

Tysdal R.G., 1976, Tysdal, R.G., Hudson, T., and Plafker, G., 1976, Surface features and recent movement along the Ragged Mountain fault, south-central Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-782, scale 1:24,000.

Tysdal, R.G., Hudson, T., and Plafker, G., 1975, Backsliding (?) along the Ragged Mountain thrust fault, in Yount, M.E., ed., U.S. Geological Survey Alaska Program, 1975: U.S. Geological Survey Circular 722, p. 49-50.

Tysdal, R.G., Hudson, T., and Plafker, G., 1976, Geologic map of the Cordova B-2 quadrangle and northern part of the Cordova A-2 quadrangle, south-central Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-783, 1 sheet, 1:63,360 scale.

Winkler, G.R., 1973, Geologic map of the Cordova A-7 and A-8, B-6, B-7, and B-8 quadrangles, Hinchinbrook Island, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-531, 1 sheet, 1:63,360 scale.

Winkler, G.R., and Plafker, G., 1981, Geologic map and cross section of the Cordova and Middleton Island quadrangles, southern Alaska: U.S. Geological Survey Open File Report 81-1164, 1 sheet, 1:250,000 scale.

Winkler, G.R., and Plafker, G., 1993, Geologic map of the Cordova and Middleton Island Quadrangles, southern Alaska: U.S. Geological Survey Miscellaneous Investigations Map I-1984, 1 sheet, 1:250,000 scale.

Woodward-Lundgren & Associates, 1974, Summary report basis for pipeline design for active-fault crossings for the Trans-Alaska Pipeline System.