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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 a port city in the Pacific Northwest and the list of cities in Oregon, largest city in the U.S. state of Oregon. Situated at the confluence of the Willamette River, Willamette and Columbia River, Columbia rivers, Portland is ...
. It stretches from Oregon City to Scappoose, and has a zone of deformation that extends at least .
References
{{reflist Seismic faults of Oregon