Four small earthquakes hit the Portland area between Thursday night and Friday morning, officials said, but no damage was reported.
As Portland considers the "what-ifs" of a huge earthquake locally, experts worry about the extreme vulnerability of area bridges.
Portland's many buildings are simply not ready for a major earthquake, the city's structural engineer told KGW.
No school in any major district would be usable again after a major earthquake. Meaning every district in our state would have to rebuild from the ground up.
Health workers at 15 hospitals in Portland's metro area said they would be expecting trauma patients in the thousands if a major 9.0 earthquake were to hit.