Stay Eat Events Weather Beaches

Swarm of Five Small Quakes Off Oregon Coast Last Week

Published 04/19/2017 at 6:23 PM PDT
By Oregon Coast Beach Connection staff

Swarm of Five Small Quakes Off Oregon Coast Last Week

(Waldport, Oregon) – A string of five small earthquakes rattled off the Oregon coast this last week, with four on Saturday alone, and another slightly larger one on the Tuesday prior to that, on April 11. (Above: Graphic courtesy Pacific Northwest Seismic Network).

It's simply another case of the Cascadia subduction zone letting us know it's out there, say scientists. Essentially, it's more of the same slipping action the two plates do on a regular occasion. However, many residents on the central Oregon coast felt at least one of these rattlers.

The four on Saturday were centered about 60 miles west of Waldport. The first on Tuesday, happened about 130 miles west of Coos Bay, much farther south and way out beyond the shore. That one was the largest, clocking in at a 4.1 magnitude at a depth of 6.2 miles, happening at 6:45 in the evening.

The first of the swarm on Saturday was the largest of that bunch, a magnitude 3.8 at 7:48 a.m., happening about 40 miles west of Waldport. This quake was felt by many residents in areas around Yachats, Waldport, Seal Rock and close to Newport. Several people on the Yachats Community page talked of feeling their homes being rattled.

The next three happened largely in the same spot and within two hours of each other.

Latest Coastal Lodging News Alerts
In Seaside:
Includes exclusive listings; some specials even in summer
In Cannon Beach:
Includes rentals not listed anywhere else
In Manzanita, Wheeler, Rockaway Beach:
Check each listing for specials
In Pacific City, Oceanside:
Some Deals even in summer; great packages
In Lincoln City:
Major price drops on some dates and some lodgings
In Depoe Bay, Gleneden Beach:
Specials can still be found
In Newport:
Includes exclusive listings not found anywhere
In Waldport
New amenities offered; specials
In Yachats, Florence
Some specials; lodgings not listed anywhere else

A second quake hit at 10:52 a.m. with a 1.8 magnitude, shaking at nearly 20 miles beneath the sea floor. The third came at 12:06 p.m. with a 2.7 magnitude at nearly 23 miles in depth. The fourth took place not long after at 12:53 p.m., a 2.4 magnitude quake that was centered 20 miles in depth.

No tsunami alerts were issued, and scientists say this is fairly normal in this region, although this many in such a short time is unusual.

The Cascadia subduction zone is where two of the Earth's plates meet, creating intense pressure as the two press up against each other. With all the Earth's plates moving at about the pace that a human fingernail grows, periodically that pressure gets released when a plate slips. This results in such tremblors as were felt recently.

Even though none of these were cause for alarm, officials and scientists are using the opportunity to urge the public to be ready for such disasters. A massive quake is expected off the Oregon coast sometime between now and the next 100 years, so it is imperative the public engage in disaster preparedness. On the Oregon coast, this also means paying attention to tsunami evacuation routes. See Live Earthquake, Tsunami Updates from Oregon Coast, Washington. B.C., California, Alaska.








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

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

 

Oregon Coast event or adventure you can't miss

 


 

LATEST Related Oregon Coast Articles

South Oregon Coast Surf Advisory, Big Waves Northern Half
Waves as large as 25 feet breaking on the beaches of places like Bandon; large waves up north
S. Oregon Coast Park Begins Camping Reservations; Ecola Closes for Two Days
Bullards Beach State Park at Bandon on the south coast; Ecola State Park, Cannon Beach
Winter Events in Newport, Depoe Bay: Central Oregon Coast Preview
Around Depoe Bay and Newport, it's more than just the holidays this winter on the central Oregon coast. Newport events, Depoe Bay events, whales
Gemind Meteors Brightest of Year: Will Oregon, Washington Coast See Them?
Portland, Pendleton, Seattle and Eugene and along the beaches it will peak on December 13 and 14. Weather, science, South coast
New Oregon Coast Tradition Lights Up a Lincoln City Dock
The renovated dock at Taft is lit up by a festive display and aglow. Travel tips, kids
Manzanita, Garibaldi, Rockaway Beach, Pacific City: N. Oregon Coast Winter Fun
Manzanita events, Nehalem, Wheeler, Rockaway Beach events, Tillamook events and Pacific City events
Winter Events of Lincoln City: Central Oregon Coast Preview
Glass floats, lots of music, food and theater. Lincoln City events
Depoe Bay Celebrates Filming of One Flew Over the Cuckoo's Nest on Oregon Coast
Oregon Film will commemorate the town's contribution to the quirky flick on December 19. Depoe Bay events

Coastal Spotlight

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