Aerial view looking south at the 2002 Denali fault rupture near its western end. This location marks the first 1m+ offsets observed along the rupture. Black arrow marks the edge of a swale offset 1.4 +/- 0.1m right-laterally and 0.22 +/- 0.04m up to the south, across the Denali fault. Nearby, a stream bank (white arrow) has been offset 3.1 +/- 0.4m, across two fault traces, the result of 2002 and the prior event. Site HSS-605, km 23.22. Photo by D. Schwartz.
Aerial view to the south of drainage features offset by the Denali fault. Black arrow points to the site of a swale offset 1.4 +/- 0.1m right-laterally and 0.22 +/- 0.04m up to the south in 2002. The white arrow points to the location of a stream channel offset in both the 2002 event and a prior earthquake. The combined offset is 3.0 +/- 0.4m, right-lateral. Site HSS-605, km 23.22. Photo by P. Haeussler.
Aerial view to the south of drainage features offset by the Denali fault. The black arrows point to a stream channel offset across multiple traces in both the 2002 event and the penultimate earthquake. The combined offset is 3.0 +/- 0.4m, right-lateral. Site HSS-605, km 23.22. Photo by P. Haeussler.
View to the south showing the edge of a swale (arrows) offset 1.4 +/- 0.1m right-laterally and 0.22 +/- 0.04m up to the south, across the Denali fault during the 2002 event. The white stadia rod lies along the rupture. P. Haeussler is standing in the swale on the south side of the fault, B. Sherrod at left. Site HSS-605, km 23.22. Photo by D. Schwartz.
View to the southeast of the edge of an active stream channel offset 3.1 +/- 0.4m right-laterally during the 2002 and penultimate earthquakes. Nearby, a swale (not shown) is offset 1.4 +/- 0.1m right-laterally and 0.22 +/- 0.04m up to the south, across the Denali fault during the 2002 rupture alone. The white stadia rod lies along the larger of the two ruptures. B. Sherrod, on the right, is standing at the edge of the channel on the south side of the fault. D. Schwartz is standing near the channel edge on the north side of the fault zone. Site HSS-605, km 23.22. Photo by P. Haeussler.