Quaternary faults and folds in Alaska: A digital database

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.

Data and Resources

Field Value
access_constraints ["Use Constraints: Any hard copies or published datasets utilizing these datasets shall clearly indicate their source. If the user has modified the data in any way, the user is obligated to describe the types of modifications the user has made. The user specifically agrees not to misrepresent these datasets, nor to imply that changes made by the user were approved by the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys. The State of Alaska makes no express or implied warranties (including warranties for merchantability and fitness) with respect to the character, functions, or capabilities of the electronic data or products or their appropriateness for any user's purposes. In no event will the State of Alaska be liable for any incidental, indirect, special, consequential, or other damages suffered by the user or any other person or entity whether from the use of the electronic services or products or any failure thereof or otherwise. In no event will the State of Alaska's liability to the Requestor or anyone else exceed the fee paid for the electronic service or product.", "Access Constraints: This report, map, and/or dataset is available directly from the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys (see contact information below)."]
bbox-east-long -134.070002
bbox-north-lat 70.751657
bbox-south-lat 50.369864
bbox-west-long 164.065994
contact-email dggsgis@alaska.gov
coupled-resource []
dataset-reference-date [{"type": "publication", "value": "2012-01-01"}]
frequency-of-update asNeeded
licence ["The State of Alaska makes no express or implied warranties (including warranties of merchantability and fitness) with respect to the character, function, or capabilities of the electronic services or products or their appropriateness for any user's purposes. In no event will the State of Alaska be liable for any incidental, indirect, special, consequential, or other damages suffered by the user or any other person or entity, whether from the use of the electronic services or products, any failure thereof, or otherwise, and in no event will the State of Alaska's liability to the requestor or anyone else exceed the fee paid for the electronic service or product."]
metadata-date 2012-07-19
metadata-language eng; USA
metadata_type geospatial
progress planned
resource-type dataset
responsible-party [{"name": "Alaska Division of Geological & Geophysical Surveys", "roles": ["pointOfContact"]}]
spatial {"type": "Polygon", "coordinates": [[[164.065994, 50.369864], [-134.070002, 50.369864], [-134.070002, 70.751657], [164.065994, 70.751657], [164.065994, 50.369864]]]}
spatial_harvester true
temporal-extent-begin 2002-01-01
temporal-extent-end 2012-01-01
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • active-fault
  • alaska
  • amerigeo
  • amerigeoss
  • ckan
  • earthquake
  • faulting
  • faults
  • folds
  • geo
  • geoss
  • hazards
  • national
  • north-america
  • paleoseismology
  • quaternary
  • state-of
  • united-states
isopen False
metadata_created 2025-11-20T04:02:21.727677
metadata_modified 2025-11-20T04:02:21.727681
notes 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.
num_resources 3
num_tags 18
title Quaternary faults and folds in Alaska: A digital database