Two, much stronger earthquakes shook the state last weekend and triggered thousands of aftershocks.
No significant damages or injuries were reported to city infrastructure, according to Tacoma and Pierce County officials.
The first temblor was a 4.6 magnitude that struck at 2:51 a.m. The natural disaster was followed by a 3.5 aftershock. "We are spooked and still awake", Rob Fuhriman told the station.
The state Department of Transportation sent crews out to inspect bridges but no damage was found by Friday afternoon. The quake was felt around the sound from Arlington to Seattle and as far as Bremerton, CBS affiliate KIRO-TV reported.
The outskirts of Seattle were hit with a 4.6 magnitude quake overnight on Thursday less than a week after a much stronger one rattled California.
Caruso said the natural disaster was the product of a thrust fault, in which one side of a fault pushes upward in relation to its opposite side.