Oregon got a little reminder from the Pacific Ocean early Monday morning that yes, we are still very much living in earthquake country.
A magnitude 5.5 earthquake struck off the Oregon coast at 4:35 a.m. Monday, shaking an area of the Pacific roughly 175 miles southwest of Eugene. The quake happened at a depth of about 6 miles, according to the U.S. Geological Survey.
The good news: officials say there is no tsunami threat.
The National Weather Service and tsunami officials reported that no tsunami warning, advisory, watch, or threat was in effect following the quake. In other words, the ocean rumbled, Oregon checked the alerts, and thankfully this one stayed in the “interesting but not alarming” category.
The earthquake occurred in the Blanco Fracture Zone, a very active offshore area where the earth’s plates are constantly doing what they do best: grinding, shifting, and occasionally making everyone on the Oregon Coast check their phones before coffee.
This part of the Pacific is no stranger to earthquakes. The Blanco Fracture Zone sits offshore from Oregon and regularly produces seismic activity. Many quakes in this region happen far enough out in the ocean that most people on land never feel them.
So far, there have been no widespread reports of residents along the southern Oregon Coast feeling Monday morning’s quake.
While this particular earthquake did not trigger a tsunami threat, it is another reminder that Oregon’s coastline sits near some of the most geologically active territory in North America. Offshore quakes are common here, and while most are harmless to people on land, they are always worth paying attention to.
Oregon emergency officials regularly encourage coastal residents and visitors to know evacuation routes, understand tsunami signs, and be prepared for the larger earthquake risk associated with the Cascadia Subduction Zone.
For Monday morning, though, the news is simple: the Pacific Ocean gave Oregon a 4:35 a.m. nudge, no tsunami is expected, and most of us slept right through it.
Somewhere out there, the fish are probably still filing noise complaints.
