A 3.3 magnitude earthquake shook the southwest Portland metro area at 8:53 p.m. Wednesday.

The quake was centered just west of Barlow, nine miles south of Tualatin and about 19 miles southwest of Portland. Some buildings shook but no one was injured.

More than 1,000 reports from throughout the region were made to the U.S. Geological Survey's earthquake site. The most reports came from the West Linn ZIP code of 97068.