PORTLAND -- Four small earthquakes hit the Portland area between Thursday night and Friday morning, officials said, but no damage was reported.
The first quake, at 8:49 p.m. Thursday, was listed as magnitude 2.1 and its epicenter was 1 mile SSW of Portland's city center.
National earthquake page: Did you feel it?
Another quake, at 9:26 p.m., was listed as magnitude 1.7 and its epicenter was less than a mile from the city center. Thirty minutes later, a 1.2-magnitude quake hit 1 mile SSE of Portland.
Map: Oregon earthquake epicenters
The fourth quake occurred at 4:07 a.m. Friday, 2 miles WSW of Portland, and registered a magnitude of 2.2. All four events were considered micro-quakes.
Two additional 1.4-magnitude quakes occurred in Oregon Wednesday and Thursday. One was recorded 1 mile north of Sublimity at 7:14 p.m. Wednesday; the other was recorded 5 miles ESE of Hubbard at 1:15 p.m. Thursday. No damage was reported from either of those events.