Stay Eat Events Weather Beaches

Underwater Quake and Aftershocks Off Southern Oregon Coast, Felt As Far As Portland

Published 08/22/2018 at 6:07 PM PDT
By Oregon Coast Beach Connection Staff

Underwater Quake and Aftershocks Off Southern Oregon Coast, Felt As Far As Portland

Latest Coastal Lodging News Alerts
In Seaside:
Includes exclusive listings; some specials in winter
In Cannon Beach:
Includes rentals not listed anywhere else
In Manzanita, Wheeler, Rockaway Beach:
Some specials for winter
In Pacific City, Oceanside:
Some specials for winter
In Lincoln City:
Some specials for winter
In Depoe Bay, Gleneden Beach:
Some specials for winter
In Newport:
Look for some specials
In Waldport
Some specials for winter
In Yachats, Florence
Some specials for winter

(Coos Bay, Oregon) – A sizable underwater quake shook just off the Oregon coast early Wednesday morning, registering as a magnitude 6.2. It happened about 1:30 a.m., some 170 miles west of Coos Bay. (Graphic courtesy USGS).

There was no tsunami threat with the quake, which is larger than many that take place in that section of the Cascadia Subduction zone. It takes an earthquake 7.0 or higher to generate a tsunami.

According to Jana Pursley with the United States Geological Survey (USGS), it was felt on land with what was termed “weak shaking,” meaning no damage was reported and it was not a strong shaker by any means. It was, however, felt as far away as Rockaway Beach, Seaside and even the Portland area.

Pursley said no one reported anything falling off shelves as well.

According to the USGS website, other inland areas that reported in included Veneta, Grants Pass, Falls City, Sutherlin, Sheridan, Cornelius, Beaverton, parts of northern California and numerous reports from Portland.

A series of small aftershocks also rattled in that area off the Oregon coast afterwards, mostly in and around a magnitude 3.1 to 3.5. Two occurred around 3 a.m., with one much farther out to sea. The latest aftershock happened at 2:31 p.m.

These come from a network of faults that run parallel to the Oregon coast, stretching some 600 miles long along the western U.S., called the Cascadia Subduction Zone.

The region experiences about 20 or more quakes and clusters of quakes per year.

Measurements of earthquake magnitudes are extremely wide, although the increments may appear small. A 7.0 is 1,000 times bigger than a 4.0, according to the USGS. But it is 31,622 times stronger in its release of energy. Stay up-to-date with Oregon, Coast Earthquake Updates - Live Data Oregon, Washington, California, Tsunamis.

Oregon Coast Lodging

 

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 Coast Hiking Hotspot Closes Briefly: Saddle Mountain Near Seaside, Hwy...
Closure from May 6 to 10, some lane closures on Hwy 26. Cannon Beach, Manzanita, Astoria
Killer Whale Sightings Making Big Splash on Oregon Coast - And It's the Apex ...
It's the same line of transient orcas involved in the whale kill in 2023. Marine sciences
Getting Oregon Coast Stays on the 'Lowdown' - Where Lincoln City Cut Rates
Excellent Lincoln City specials abound. Lincoln City hotel reviews
Destructive, Invasive Crab Found on N. Oregon Coast, Officials Ask Public's Help
Chinese mitten crab was found near Astoria. Marine sciences
Two Oregon Coast Gigs Bring Fiddle Virtuosos and a Local Composer to Newport
Milo Graamans on May 13 at a special benefit; Fiddle Express on May 16. Newport events
South Oregon Coast Landmark Under the Knife: Bandon's Face Rock Viewpoint Clo...
Set to reopen on May 23, parking lot and restroom closed, Depoe Bay, Cape Foulweather. Travel tips
Surprise Oregon Coast Accesses at Yachats' Northern, Outer Edges
Glorious discoveries include where Yachats changes from sand to rock. Travel tips
Washington Coast Gets Another Green Light for Razor Clamming, April 26 - May 3
Long Beach, Copalis, Twin Harbors and Mocrocks. Washington events

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