Stay Eat Events Weather Beaches

Small Quake Shakes Just Off Oregon Coast, California Coast

Published 08/11/2017 at 6:23 PM PDT
By Oregon Coast Beach Connection staff

Small Quake Shakes Just Off Oregon Coast, California Coast

(Brookings, Oregon) – The USGS reports a 4.5 magnitude quake struck off the southern tip of the Oregon coast on Thursday at almost 11 a.m. (Graphic courtesy USGS).

No tsunami alert was issued. There are no reports of it being felt, much less causing damage or injury to people.

The quake happened a litle more than miles out to sea, almost directly west of the California / Oregon border – about 115 miles northwest of Eureka, Ca. and a little less than that from Brooking, Or.

This was a shallow quake a little more than one kilometer in depth, and a little closer to shore than usual as most undersea quakes off the Oregon coast tend to occur 200 to 300 miles offshore. It happened along the Blanco Fracture Zone, which is where the Juan de Fuca plate and the Pacific Plate are scraping up against each other.

It took place closest to what is known as the Gorda Ridge, an area of steep underwater valleys that is caused by the tectonic action in the area.

These kinds of quakes are not unusual for the region, although it will one day cause a massive geologic event that will result in a major quake and tsunami. The last such quake happened in 1700 and was documented by tsunami events in Japan.

Small quakes and clusters of quakes happen approximately 20 times per year in that region.

Most recently, a 4.1 rattler shook the sea floor in early July. It also caused no injuries and was not felt anywhere, but it caused a bigger fury on social media than Thursday's rumble.

The USGS said it takes a 7.0 quake to create a tsunami.

You can keep up with Pacific ocean earthquakes in the Northwest and west coast with the Live Earthquake, Tsunami Updates from Oregon Coast, Washington. B.C., California, Alaska section.


More Oregon Coast Below:










 

More About Oregon Coast hotels, lodging.....

More About Oregon Coast Restaurants, Dining.....

 

Oregon Coast event or adventure you can't miss

 



Coastal Spotlight


LATEST Related Oregon Coast Articles

Oregon, Washington Coast High Surf Advisories
Big waves are headed for the Oregon coast and the southern half of the Washington coast
Cutting Edge Archaeology Subject of N. Oregon Coast Event
Each year the Cannon Beach History Center and Museum partners with the Archaeological Institute of America. Cannon Beach events
Two Major Oregon Coast State Parks Undergo Work, Some Closures
Sunset Beach State Recreation Site near Seaside, Fort Stevens State Park near Astoria and Ecola State Park at Cannon Beach
Five Amazing Guided Foraging Adventures of South Oregon's Live Culture Coast
Outdoors foraging and hiking events, which come in eye-popping varieties and combinations
Halloween Into Holidays: N. Oregon Coast Preview, Astoria, Cannon Beach, Seaside
What you shouldn't miss in the next two months, with a sneak preview of holidays. Cannon Beach events, Astoria events
Some Serious Swing on Central Oregon Coast: Big Band Dance in Lincoln City
Lincoln City Cultural Center hosts a Big Band Dance on Saturday, October 12
Somewhat Rare Mola Molas / Sunfish Spotted Off Oregon Coast - Video
Seen in the waters off Cape Falcon (near Manzanita) and off Otter Rock (near Depoe Bay). Sciences
Central Oregon Coast Preview: Lincoln City Glass Floats, Halloween, Snoop Dogg
Food, theater, Celtic music, plenty of Halloween stuff

Back to Oregon Coast

Contact Advertise on BeachConnection.net
All Content, unless otherwise attributed, copyright BeachConnection.net Unauthorized use or publication is not permitted

Oregon Coast Lodging
Rentals
Specials

Dining

Events Calendar

Oregon Coast Weather

Travel News

Search for Oregon Coast Subjects, Articles

Virtual Tours, Maps
Deep Details