A paleoseismic study along the central Denali Fault, Chistochina Glacier area, south-central Alaska
Report of Investigations of the Alaska Department of Natural Resources, Division of Geological & Geophysical Surveys
2011-1
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Abstract
In the Chistochina Glacier area of south-central Alaska, the active trace of the Denali fault is well defined by prominent tectonic geomorphology, including scarps, grabens, and mole tracks associated with the 2002 Mw=7.9 Denali fault earthquake. Interpretation of a trench excavated across the 2002 rupture trace places a constraint on the timing of the penultimate earthquake to after 550 to 660 yr before 2002, consis- tent with other paleoseismic studies along the central Denali fault. Field measurement of offset moraine deposits and use of existing geochronologic data is the basis to estimate a minimum latest Pleistocene slip rate of 8–14 mm/yr.
Suggested Citation
Koehler, R., Personius, S., Schwartz, D.P., Haeussler, P., Seitz, G., 2011, A paleoseismic study along the central Denali Fault, Chistochina Glacier area, south-central Alaska: Report of Investigations of the Alaska Department of Natural Resources, Division of Geological & Geophysical Surveys 2011-1, 21 p., https://doi.org/10.14509/22361.
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | State or Local Government Series |
| Title | A paleoseismic study along the central Denali Fault, Chistochina Glacier area, south-central Alaska |
| Series title | Report of Investigations of the Alaska Department of Natural Resources, Division of Geological & Geophysical Surveys |
| Series number | 2011-1 |
| DOI | 10.14509/22361 |
| Year Published | 2011 |
| Language | English |
| Publisher | State of Alaska, Department of Natural Resourses, Division of Geological & Geophysical Surveys |
| Contributing office(s) | Alaska Science Center Geology Minerals |
| Description | 21 p. |
| Country | United States |
| State | Alaska |
| Other Geospatial | Christochina Glacier area |