PORTLAND, Ore. - A small earthquake rattled the Portland area Sunday evening.

The earthquake, which registered a preliminary 2.6 magnitude, happened at 9:34 p.m. The epicenter was near Southeast 18th and Belmont.

Because the magnitude was less than 3.0, it was classified as a micro earthquake.

Classifications

Magnitude 0 - 3 = Micro
Magnitude 3 - 3.9 = Minor
Magnitude 4 - 4.9 = Light
Magnitude 5 - 5.9 = Moderate
Magnitude 6 - 6.9 = Strong
Magnitude 7 - 7.9 = Major
Magnitude 8 or higher = Great
KATU News received several phone calls from viewers, along with e-mails from people who said they felt the shaking.