Copyright Information: All images are in the public domain and available for free. If you use this image, credit NOAA/NGDC, R.C. Bucknam, U.S. Geological Survey. |
This section of the normal fault scarp was produced by the earthquake. It is 678.8 m northwest of the alluvial fan head on Rock Creek. Nearly vertical slickensides on the fault surface are visible on the lower half of the scarp. The scarp is 2.5 m high at this location. The earthquake killed two children in Challis, Idaho, and caused $12.5 million in property damage. Image Credit: R.C. Bucknam. U.S. Geological Survey October 28, 1983 Borah Peak USA earthquake The magnitude 7.2 earthquake of October 28, 1983, near Borah Peak, Idaho. Event Data:
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