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Alaska DNR creates fault line website


The Alaska Department of Natural Resources’ Division of Geological and Geophysical Surveys has released an interactive web map application displaying earthquake faults and folds throughout Alaska that are believed capable of producing damaging earthquakes.

The new application, Alaska’s Quaternary Faults and Folds, focuses on “geologically recent activity,” and is part of the DGGS Engineering Geology Section’s efforts to better characterize earthquake hazards.

The map included uses zoom and scroll options to navigate and view the locations of active earthquake faults across the state. Options include topographic maps, digital elevation models, and satellite images. Basic faults are displayed in pop-up balloons accessed by clicking the mapped trace on-screen.

Options to observe include name, age, slip rate, slip sense, dip direction, mapping accuracy, and mapped scale, as well as the relative age of the last known activity on each fault.

To use the site, go to http://www.dggs.alaska.gov/pubs/id/24956 and click on the “Quaternary Faults and Folds” link.


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