A powerful 8.8 magnitude earthquake that struck off the coast of Russia’s Kamchatka Peninsula Tuesday triggered multiple tsunami alerts across the West Coast.
People enjoyed the beach at Oceanside after the tsunami advisory. July 30, 2025
Amelia Templeton / OPB
The National Weather Service issued a tsunami watch for Oregon and Washington’s coastal areas. That watch was later upgraded to an advisory and then finally lifted by the weather service Wednesday morning.
According to the Oregon Department of Emergency Management, small tsunami waves started reaching parts of the Oregon Coast Tuesday night with some waves being between 1 to 2 feet in height.
Despite the alerts being dropped, officials are still urging people who visit the coast to take extra precautions as large debris may continue to wash ashore.
The alerts come as a reminder for many Oregonians that tsunamis can happen at any time and without much warning. Officials are stressing the importance of being prepared and alert during another potential tsunami alert.
Below is a breakdown of what the alerts mean and how they can help you better prepare for a possible tsunami.
Understanding tsunami alerts
- Tsunami Warning: “Take Action” — A tsunami that may cause widespread flooding is expected or occurring in the area. This warning cautions people that dangerous coastal flooding and powerful currents are possible and that they may continue for several hours or days.
- Tsunami Advisory: “Take Action” — A tsunami with the potential for strong currents or waves dangerous to those in the area is expected or occurring. This advisory cautions people that beaches or harbor areas may be flooded.
- Tsunami Watch: “Be Prepared” — A distant earthquake has occurred and a tsunami is possible. This watch cautions people to stay tuned for additional information and to be prepared to act.
- Tsunami Information Statement: “Relax” — No threat has been detected or determined but an earthquake has occurred in an area very far away.
