Deformation of the 2002 Denali Fault earthquakes, mapped by Radarsat-1 interferometry
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Abstract
The magnitude 7.9 earthquake that struck central Alaska on 3 November 2002 was the largest strike-slip earthquake in North America for more than 150 years. The earthquake ruptured about 340 km of the Denali Fault system with observed right-lateral offsets of up to 9 m [Eberhart-Phillips et al., 2003] (Figure l). The rupture initiated with slip on a previously unknown thrust fault, the 40-km-long Susitna Glacier Fault. The rupture propagated eastward for about 220 km along the right-lateral Denali Fault where right-lateral slip averaged ˜5 m, before stepping southeastward onto the Totschunda Fault for about 70 km, with offsets as large as 2 m. The 3 November earthquake was preceded by a magnitude 6.7 shock on 23 October—the Nenana Mountain Earthquake—which was located about 25 km to the west of the 3 November earthquake.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Deformation of the 2002 Denali Fault earthquakes, mapped by Radarsat-1 interferometry |
| Series title | Eos, Transactions, American Geophysical Union |
| DOI | 10.1029/2003EO410002 |
| Volume | 84 |
| Issue | 41 |
| Year Published | 2003 |
| Language | English |
| Publisher | AGU Publications |
| Contributing office(s) | Earth Resources Observation and Science (EROS) Center |
| Description | 7 p. |
| First page | 425 |
| Last page | 431 |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |
| Google Analytic Metrics | Metrics page |