Specifically, the warning covered the region stretching from the Oregon-California border to Cape Mendocino in Northern California, including Humboldt and Del Norte counties—a red zone where residents were urged to evacuate immediately due to the imminent threat of dangerous waves.

A tsunami warning was issued for California's North Coast, after a massive earthquake off the coast of eastern Russia.

Tsunami Advisory: Take Action— A tsunami with potential for strong currents or waves dangerous to those in or very near the water is expected or occurring. There may be flooding of beach and harbor areas. Stay out of the water and away from beaches and waterways. Follow instructions from local officials.