The Pacific Tsunami Warning Center’s latest tsunami warning update for Hawaii says that first waves to hit Kauai measured at amplitude 3 to 4 feet in Hanalei, and 0.7 to 0.8 feet Nawiliwili. Tsunami amplitude is “measured relative to normal sea level,” according to the 8 p.m. update.

The National Weather Service has issued a tsunami warning for the coast of Northern California from Cape Mendocino to the California-Oregon border. Waves up to 4.8 feet above the tide are forecast to hit Crescent City, California, around 11:30 p.m., according to the weather service.