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UPDATE: Oregon / Washington Coast Tsunami Advisory Expired

Updated 01/15/22 at 7:10 PM PST
By Oregon Coast Beach Connection staff

South Pacific Event Causes Tsunami Advisory on Washington / Oregon Coast

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(Portland, Oregon) – UPDATED 7 P.M. - TSUNAMI ADVISORY EXPIRED. SEE Tsunami Advisory Over for Washington / Oregon Coast - Images, Video Surges coincided with an already-raucous ocean and sneaker waves


The National Weather Service (NWS) has reissued a tsunami warning for the region from just north of Los Angeles through the Canadian coastline, including the Washington coast and Oregon coast.

So far, only one to three-foot waves have hit the shorelines of Oregon and Washington and that is all that is likely to occur. But government agencies are remaining cautious and still urging people to stay off beaches and get to port if you're in a boat out at sea. You should also stay out of marinas and harbors, the NWS said.

More updates and eyewitness accounts of this morning's higher-than-normal waves are coming – but this did happen on a day when there were numerous sneaker waves anyway along the coastlines.

According to the National Weather Service (NWS) as of 5:20 a.m.:

The National Tsunami Warning Center has issued a TSUNAMI ADVISORY for the Washington and Oregon Coast, due to a large underwater volcanic eruption off the nation of Tonga around 830pm Fri PST.
1 to 3 ft waves along the Washington & Oregon Coast.
830AM Newport, OR
835AM Long Beach, WA
845AM Seaside, OR
First wave may not be the highest so later waves my be larger.
Will update again when we receive more info

First wave on the southern Oregon coast is expected at 7:55 a.m., according to the NWS in Medford.

While the waves are not expected to be pervasive - so far - you should not go onto beaches during this and stick to higher ground.

All of the west coast of the United States is under this advisory, including California and Alaska, as well as Mexico.

The eruption caused a massive tsunami on Tonga's largest island and flooded the capital.

The undersea eruption registered as a magnitude 1.0, but is much more serious than that. It has caused a tsunami advisory to be issued in Hawaii.

Earlier post from NWS

According to various news reports, the Hunga Tonga-Hunga Ha'apai underwater volcano had been considered dormant until recently. Its eruption earlier tonight created a shockwave felt by weather instruments in New Zealand.

There is no threat to American Somoa, Guam or the Commonwealth of the Northern Mariana Islands. Numerous other south Pacific nations are under tsunami alerts, however.

It is doubtful if any evacuations will be necessary, but this could change during the morning. See the agency's Twitter feed for updates as well.


Photo courtesy Oregon Coast Visitors Association

Grayland, Washington

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