![Portland Hills Fault](https://upload.wikimedia.org/wikipedia/commons/c/c2/Portland_Hills_Fault.png)
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