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; Incredible specials now
In Cannon Beach:
Deals in full force now
In Manzanita, Wheeler, Rockaway Beach:
Check each listing for specials
In Pacific City, Oceanside:
Fantastic Deals for Winter
In Lincoln City:
Deals on rooms everywhere
In Depoe Bay, Gleneden Beach:
Specials abound
In Newport:
Specials and deals like crazy
In Waldport
New amenities offered; specials
In Yachats, Florence
Many specials; lodgings not listed anywhere else

(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, Portland Update: Memorial Weekend Wetter Than Predicted
NWS has changed some of the forecasts in the last 24 hours to a more intense mix of showers and then warmer temps
Pacific City's Headlands Lodge A Unique Take on Oregon Coast Pampering
Artful, striking architecture and the upscale meet the crazed chaos of nature
Killer Whale Sightings Lead to Revelations About Oregon Coast Transient Orcas
The sighting seems to have revealed something significant about this rather mysterious group of killer whales. Science
Small Earthquake Just Inland on Oregon Coast Felt By a Few
The Pacific Northwest Seismic Network received some 53 responses to the quake. South coast, sciences, Lincoln City
Pacific City's Two Wonder-Inducing Neighbors: Where the North Oregon Coast Be...
One is a tiny town; the other a wowing beach of otherworldly sights. Neskowin, Winema
Forest Preserve on N. Oregon Coast Opens, Featuring Tallest Cedar in State
A new nature preserve at Rockaway Beach officially opens up its boardwalk on June 15
Weird and Wonderful Above Oregon Coast, Portland: Milky Way Gone, Meteors
Astronomy: Tail end of a meteor shower, Milky Way missing. Weather
Washington Coast Travel Guide
Guide to Washington Coast: updated articles, travel news, tourism updates

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