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The Portland Hills fault zone is the largest shallow fault that cuts beneath
The Portland Hills fault zone is the largest shallow fault that cuts beneath Portland, Oregon
Portland ( ) is the List of cities in Oregon, most populous city in the U.S. state of Oregon, located in the Pacific Northwest region. Situated close to northwest Oregon at the confluence of the Willamette River, Willamette and Columbia River, ...
. It stretches from Oregon City to Scappoose, and has a zone of deformation that extends at least .
References
{{reflist Seismic faults of Oregon