Surface rupture of the 2002 Denali fault, Alaska, earthquake and comparison with other strike-slip ruptures

Haeussler, P. J.; Schwartz, D. P.; Dawson, T. E.; Stenner, H. D.; Lienkaemper, J. J.; Cinti, F.; Montone, P.; Sherrod, B.; Craw, P.

Abstract:

On 3 November 2002, an M7.9 earthquake produced 340 km of surface rupture on the Denali and two related faults in Alaska. The rupture proceeded from west to east and began with a 40-km-long break on a previously unknown thrust fault. Estimates of surface slip on this thrust are 3-6 m. Next came the principal surface break along ???218 km of the Denali fault. Right-lateral offsets averaged around 5 m and increased eastward to a maximum of nearly 9 m. The fault also ruptured beneath the trans-Alaska oil pipeline, which withstood almost 6 m of lateral offset. Finally, slip turned southeastward onto the Totschunda fault. Right-lateral offsets are up to 3 m, and the surface rupture is about 76 km long. This three-part rupture ranks among the longest strike-slip events of the past two centuries. The earthquake is typical when compared to other large earthquakes on major intracontinental strike-slip faults. ?? 2004, Earthquake Engineering Research Institute.

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Article

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70026874

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Haeussler, P. J.; Schwartz, D. P.; Dawson, T. E.; Stenner, H. D.; Lienkaemper, J. J.; Cinti, F.; Montone, P.; Sherrod, B.; Craw, P.

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578

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English

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Earthquake Spectra

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Surface rupture of the 2002 Denali fault, Alaska, earthquake and comparison with other strike-slip ruptures; 2004; Article; Journal; Earthquake Spectra; Haeussler, P. J.; Schwartz, D. P.; Dawson, T. E.; Stenner, H. D.; Lienkaemper, J. J.; Cinti, F.; Montone, P.; Sherrod, B.; Craw, P.