First Tsunami Waves Strike Mainland U.S., Over 1‑Foot Wave Recorded in California

Brief by Shorts91 Newsdesk / 09:21am on 30 Jul 2025,Wednesday Weather & Environment

In the early hours of July 30, 2025, tsunami waves triggered by a massive 8.8-magnitude earthquake off Russia’s Kamchatka Peninsula reached Northern California, marking the first impact on the continental U.S. Waves up to 1.5 ft were recorded in Crescent City and Arena Cove, while Bay Area gauges detected about 1 ft . A tsunami warning was active for the northern coast from Cape Mendocino to the Oregon border, while the rest of California remained under an advisory . Officials warned of a build-up of waves through high tide and urged residents to avoid beaches, harbours, and low-lying zones for the next several hours. (PC: India Today)

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