Quaternary faults and folds in Alaska: A digital database
Dates
Publication Date
2012
Start Date
2002
End Date
2012
File Modification Date
2014-05-22 11:36:00
Citation
Koehler, R.D., Farrell, Rebecca-Ellen, Burns, P.A.C., and Combellick, R.A., 2012, Quaternary faults and folds in Alaska: A digital database: Alaska Division of Geological & Geophysical Surveys, http://dx.doi.org/10.14509/23944.
Summary
This dataset contains information and locations on faults and associated folds in Alaska that are believed to be sources of M>6 earthquakes during the Quaternary (the past 1,600,000 years). The dataset is intended to part of the USGS archive for historic and ancient earthquake sources used in current and future probabilistic seismic-hazard analyses. This dataset presents a single source that summarizes important information on paleoseismic (ancient earthquakes) parameters including, age of most recent deformation, slip rate, slip sense dip direction, and accuracy of original mapping. These data are compiled from hundreds of journal articles, maps, theses, and other documents, as referenced herein. The geospatial data coverage for the [...]
Summary
This dataset contains information and locations on faults and associated folds in Alaska that are believed to be sources of M>6 earthquakes during the Quaternary (the past 1,600,000 years). The dataset is intended to part of the USGS archive for historic and ancient earthquake sources used in current and future probabilistic seismic-hazard analyses. This dataset presents a single source that summarizes important information on paleoseismic (ancient earthquakes) parameters including, age of most recent deformation, slip rate, slip sense dip direction, and accuracy of original mapping. These data are compiled from hundreds of journal articles, maps, theses, and other documents, as referenced herein. The geospatial data coverage for the state of Alaska is designed to serve a variety of needs, both in terms of the user community and methods of delivering the data.
Alaska is the most seismically active region of the United States, however little information exists on the location, style of deformation, and slip rates of Quaternary faults. Thus, to provide an accurate, user-friendly, reference-based fault inventory to the public, we have produced a digital GIS shapefile of the Quaternary fault traces. Relevant information pertaining to the digital GIS shapefile is presented herein. This database will be useful for engineering geologic problems, geologic, geodetic, and seismic research, and policy planning. In addition, the GIS shapefile has been made in conformance with the standards defined by the U.S. Geological Survey and this data set will be incorporated into the National Quaternary fault and fold database.
