Tsunami Hawaii

1. What Happened

On July 30, 2025, at around 8:25 a.m. local time (Kamchatka), a massive magnitude 8.8 earthquake struck approximately 119 km east-southeast of Petropavlovsk‑Kamchatsky, at a depth of ~20 km. It’s now tied as the sixth strongest quake ever recorded The Sun+12TIME+12The Times of India+12.
The quake produced multiple aftershocks, potentially as high as magnitude 7.5, which may continue for weeks TIME AP News.
Coastal towns in Russia—especially Severo‑Kurilsk on the Kuril Islands—were flooded by a tsunami up to 3–4 meters (10–13 feet) tall, prompting evacuations The Wall Street Journal+4TIME+4AP News+4.

Hawaii declared a tsunami warning, with waves first arriving around 7:17 p.m. HST (1:17 a.m. EDT) Al Jazeera+14CBS News+14nypost.com+14.
Instrument gauges recorded 4–6‑foot (1.2–1.8 m) waves at locations like Hilo, Maui, Midway Atoll, Haleiwa, and Hanalei The Sun.
Residents were urged to evacuate coastal areas, seek higher ground, and avoid beaches. Harbors and Maui airport temporarily closed, and evacuation shelters were opened nypost.com CBS News foxweather.com.
By late evening, officials reported no significant damage: Governor Josh Green said no “wave of consequence” was observed to that point ABC.

The entire U.S. West Coast, including California, Oregon, Washington, and British Columbia, was placed under a tsunami watch or advisory. Northern California had an active advisory level; Southern parts saw an advisory or watch, depending on location TIME.
Some California coastal locations did record small waves, typically around 1 foot (30 cm) or less, in places like Crescent City, Monterey, San Francisco area, and LA harbors. No evacuations were ordered, but dangerous currents and strong rip tides were cited as a hazard The Sun.
Waves were expected to begin arriving starting around midnight local time onward, with advisory-level caution advised until authorities confirm all-clear The Sun The Times of India CBS News.

From the official guidance on tsunami alerts:

Tsunami Warning: Imminent or occurring event with threat of significant flooding—evacuation required.
Tsunami Advisory: Strong or unusual currents and waves possible—stay alert and away from shoreline.
Tsunami Watch: Possible tsunami—stay informed but no immediate action yet needed The Times of India.

Hawaii had a Warning, prompting evacuation. California and other West Coast regions remained under advisory or watch, depending on location.

Yes, tsunami waves did reach Hawaii, with recorded heights up to 6 feet (~1.8 m).
Yes, warnings remain in effect—Hawaii under warning, California and West Coast under watch/advisories due to potentially dangerous currents—not major waves.
No major damage reported so far in any U.S. areas; Hawaii officials characterize impacts as minimal—they have not observed destructive waves yet The Sun+1CBS News+1 ABC+1CBS News+1.