The shallow quakes like this one with 5km depth are signature quakes caused by the Cleaning-up Operation on Reptilian Secret Underground Bases led by Galactic Federation of Light. The deepest place in Reptilian Secret Underground Base is 6 mile deep (a little bit less than 10km).
Many people felt this quake in the middle of the populated area.
This epicenter is located near Portland International Jetport.
It looks like this area has strong connection to Denver Colorado where has the one of the biggest Reptilian Secret Underground Bases just under Denver International Airport. Almost all airports have Reptilian Secret Underground Bases underneath them including this Portland Jetport.
Of course, this rare quake was cause by the Cleaning-up Operation on Reptilian Secret Underground Base led by Galactic Federation of Light.