Tsunami Reaches Hawaii, West Coast Following 8.8 Earthquake Off Russian Coast.

Tsunami Waves Slam Hawaii and U.S. Coast After Major Russian Earthquake

Tsunami Waves Reach Hawaii and U.S. West Coast After Massive 8.8 Earthquake Near Russia’s Kamchatka Peninsula

Tsunami waves struck Hawaii and parts of the U.S. West Coast on July 29, hours after a powerful 8.8-magnitude earthquake—one of the strongest in recorded history—hit off Russia's Kamchatka Peninsula. The quake triggered tsunami warnings and advisories across the Pacific, including Alaska and the entire West Coast.

The first waves reached Hawaii around 7 p.m. local time, prompting concern among emergency officials. However, by 10:45 p.m., the Tsunami Warning System downgraded the threat from a warning to an advisory, and no significant damage was reported.

“So far we have not seen a wave of consequence, which is a great relief to us. It's kind of a blessing to not be reporting any damage,” said Hawaii Governor Josh Green during a press briefing.

Along the mainland, tsunami waves began arriving at Crescent City and Humboldt Bay in California overnight, according to the National Weather Service in Eureka. The agency warned that waves would intensify with the incoming high tide and urged residents to stay off beaches and out of coastal areas.

Tsunamis can generate multiple waves over several hours, posing continued risks long after the initial impact.

Crescent City, which sits along a tsunami-prone section of the coast, was under a tsunami warning, while the broader West Coast remained under advisory status. The National Oceanic and Atmospheric Administration (NOAA) noted that the city's harbor is especially vulnerable to amplified wave activity due to its unique geography.

On the Washington coast, tsunami waves were observed just after midnight, though wave height data was still pending, according to the National Weather Service in Seattle.

The U.S. Geological Survey (USGS) reported the earthquake at 7:24 p.m. ET, located roughly 78 miles east-southeast of Petropavlovsk-Kamchatsky, Russia, at a shallow depth of about 12 miles, making it more likely to displace water and generate a tsunami.

By 11:30 p.m. ET, the National Weather Service upgraded a tsunami advisory to a full warning for coastal California, from Cape Mendocino to the Oregon-California border, cautioning that significant coastal flooding and strong currents were possible.

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