Images

Right steps in the Denali fault trace on the Canwell Glacier caused large rhombehedral chasms to form. Patty Craw in background. This photo was on the front page of the Anchorage Daily News.

View northward of mountain near Gillette Pass showing sackung features. Here the mountaintop moved downward like a keystone, producing an uphill-facing scarp. The main Denali fault trace is on the far side of the mountain and a small splay fault is out of view below the photo.

Landslide debris on the west fork of the Gakona Glacier. Note helicopter on right for scale! View to east.

Peter Haeussler measures offset of the Susitna Glacier thrust fault.

The Susitna Glacier thrust fault southwest of the toe of the Susitna Glacier. The rolled over tundra reflects the fault trace.

Surface faulting split this tree near the Trans Alaska Pipeline.

Patty Craw, DGGS, stands in front of the Susitna Glacier thrust fault. The November 3 earthquake started with an M7.2 earthquake along this fault.

Helicopters and satellite phones were integral to the geologic field response. Here, Peter Haeussler is calling a seismologist to pass along the discovery of the Susitna Glacier thrust fault. View is to the north up the Susitna Glacier. The Denali fault trace lies in the background where the two landslides can be seen.

View south along the Trans Alaska Pipeline in the zone where it was engineered for the Denali fault. The fault trace passes beneath the pipeline between the 2nd and 3rd slider supports at the far end of the zone. A large arc in the pipe can be seen in the pipe on the right, due to shortening of the zigzag-shaped pipeline trace within the fault zone.

Peter Haeussler examining the Denali fault trace on the Susitna Glacier to find matching ice surfaces to determine amount of fault offset.

The fault scarp created a waterfall in the transition region between the Denali fault and the Totschunda fault.

View southward toward Mt. McGinnis and two large landslides on the northeastern side. These slides had roughly 40 million cubic meters of material and travelled 10 km down glacier. This is the cover photo of the May 16th, 2003, Science.

Right step in Denali fault trace on Black Rapids Glacier caused extension of the glacier. Landslide debris in background.

Peter Haeussler prepares to measure the offset of a crevasse on the Canwell Glacier.

The fault scarp created a waterfall in the transition region between the Denali fault and the Totschunda fault.

Bone Creek, 5.5 meter offset measured here. The fault trace runs along the sharp bank edge at the right of the photo, from the bottom center toward the upper right.

Denali fault near headwaters of Chistochina River, view to the south. Dark blur at top of photo is rotor blade.

View westward up Black Rapids Glacier at large landslides.

View north of Denali fault trace at Gillette Pass. this view shows that the surface rupture reoccupies the previous fault scarp. Also the right-lateral offset of these stream gullies has developed since deglaciation in the last 10,000 years or so.

View west over pass between Canwell and Chistochina Glaciers. Two fault traces here may indicate the glacier ice is influencing the fault trace.

View of Denali fault trace in Chistochina River valley.