HR: 1330h
AN: S12A-0376    [PDF]
TI: Spatial Based Integrated Assessment of Bedrock and Ground Motions, Fault Offsets, and Their Effects for the October-November 2002 Earthquake Sequence on the Denali Fault, Alaska
AU: * Vinson, T S
EM: Ted.Vinson@orst.edu
AF: Oregon State University, Dept of Civil Engineering Apperson Hall, Corvallis, OR 97331 United States
AU: Carlson, R
AF: University of Alaska Fairbanks, Civil Engineering, Fairbanks, AK 99775 United States
AU: Hansen, R
AF: University of Alaska Fairbanks, Geophysical Institute, Fairbanks, AK 99775 United States
AU: Hulsey, L
AF: University of Alaska Fairbanks, Civil Engineering, Fairbanks, AK 99775 United States
AU: Ma, J
AF: University of Alaska Fairbanks, Civil Engineering, Fairbanks, AK 99775 United States
AU: White, D
AF: University of Alaska Fairbanks, Civil Engineering, Fairbanks, AK 99775 United States
AU: Barnes, D
AF: University of Alaska Fairbanks, Civil Engineering, Fairbanks, AK 99775 United States
AU: Shur, Y
AF: University of Alaska Fairbanks, Civil Engineering, Fairbanks, AK 99775 United States
AB: A National Science Foundation (NSF) Small Grant Exploratory Research Grant was awarded to the University of Alaska Fairbanks to archive bedrock and ground motions and fault offsets and their effects for the October-November 2002 earthquake sequence on the Denali Fault, Alaska. The scope of work included the accumulation of all strong motion records, satellite imagery, satellite remote sensing data, aerial and ground photographs, and structural response (both measured and anecdotal) that would be useful to achieve the objective. Several interesting data sets were archived including ice cover, lateral movement of stream channels, landslides, avalanches, glacial fracturing, "felt" ground motions, and changes in water quantity and quality. The data sources may be spatially integrated to provide a comprehensive assessment of the bedrock and ground motions and fault offsets for the October-November 2002 earthquake sequence. In the aftermath of the October-November 2002 earthquake sequence on the Denali fault, the Alaskan engineering community expressed a strong interest to understand why their structures and infrastructure were not substantially damaged by the ground motions they experienced during the October-November 2002 Earthquake Sequence on the Denali Fault. The research work proposed under this NSF Grant is a necessary prerequisite to this understanding. Furthermore, the proposed work will facilitate a comparison of Denali events with the Loma Prieta and recent Kocelli and Dozce events in Turkey, all of which were associated with strike-slip faulting. Finally, the spatially integrated data will provide the basis for research work that is truly innovative. For example, is may be possible to predict the observed (1) landsliding and avalanches, (2) changes in water quantity and quality, (3) glacial fracturing, and (4) the widespread liquefaction and lateral spreading, which occurred along the Tok cutoff and Northway airport, with the bedrock and ground motions and fault offsets extrapolated from the product of the research. An integrated assessment of the composite effects may be performed to better understand the bedrock and ground motions and fault offset regime that existed during the earthquake sequence.
DE: 7212 Earthquake ground motions and engineering
DE: 7215 Earthquake parameters
DE: 7223 Seismic hazard assessment and prediction
DE: 7255 Surface waves and free oscillations
SC: Seismology [S]
MN: 2003 Fall Meeting