Crescent City, California — Emergency services have escalated a tsunami alert for the North Coast, moving from a standard advisory to a severe warning for Humboldt and Del Norte counties, particularly impacting Crescent City, historically known for its vulnerability to tsunamis.

The tsunami warning signifies the highest level of alert within the U.S. Tsunami Warning Center’s three-phase system, which includes a watch and advisory. Residents in the affected areas are instructed to evacuate the coastline immediately. A similar warning has been issued for all of Hawaii, prompting residents to seek higher ground, and alerts extend to Guam and parts of Alaska’s Aleutian Islands.

Cities along the California coastline not under the severe warning still maintain a tsunami advisory, signaling the potential for dangerous currents and notable wave activity, which encourages beachgoers to remain off the shores. If a tsunami were to occur, it is expected to make landfall in Crescent City at approximately 11:50 p.m., followed by a smaller impact in Los Angeles around 1 a.m. The forecast indicates less than a foot of wave height in Los Angeles, while Crescent City braces for waves reaching up to 4.8 feet.

This event has brought back memories of the catastrophic tsunami in 2011 that devastated Crescent City, which was caused by a 9.1 magnitude earthquake off Japan’s coast. In addition to Crescent City, Port San Luis in San Luis Obispo County could see waves between 2 to 3.7 feet, with other regions in California anticipating waves below 1.3 feet.

Authorities issued the tsunami alerts following a significant earthquake, registering 8.8 in magnitude, off the Kamchatka Peninsula in Russia. The tremor, which struck local time at 9:25 a.m. Wednesday, left behind a trail of destruction in Japan, including a kindergarten damaged by waves approaching 10 feet.

Meanwhile, evacuation routes in Hawaii were heavily congested as residents prepared for the looming tsunami threat, with many rushing to stock up on supplies. Some flights have been rerouted due to the warnings, underscoring the seriousness of the situation across the Pacific.

Reports from Japan indicated early tsunami activity, recording a foot-high tsunami in Hokkaido as emergency responses were activated along the coastline. Local officials urged residents to evacuate areas most at risk as waves were projected to gain momentum.

This evolving situation reinforces the unpredictable nature of tsunamis; past events have shown that the initial wave is not always the largest. Emergency officials have cautioned that even waves of modest height can be deceptively dangerous. Six inches of water can knock an adult off their feet, while two feet has the potential to sweep away vehicles.

Los Angeles Mayor Karen Bass is coordinating with local leaders to ensure preparedness as the threat continues to develop. She has encouraged residents to stay informed and sign up for emergency alerts through city resources. Simultaneously, San Francisco officials are evaluating the necessity of evacuations along shoreline areas, urging residents to remain vigilant as details unfold.

The potential of a tsunami serves as a stark reminder of nature’s power, urging communities to respect the warnings and prepare adequately in the face of uncertainty.