The Spencer Canyon fault is an active seismic fault in central Washington state. Discovered in 2014, it was identified following a multi-year investigation into the source of the 1872 North Cascades earthquake, which was widely felt across the Pacific Northwest. In 2015, researchers who reported the discovery of the fault also identified the epicenter of the 1872 earthquake near the town of Chelan.Brian L Sherrod, Richard J Blakely and Craig S Weaver. "LIDAR Helps Identify Source of 1872 Earthquake Near Chelan, Washington", paper presented December 16, 2015 at American Geophysical Union fall meeting
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