Tsunami in California, July 30 to 31, 2025

Name: Tsunami in California, July 30 to 31, 2025
Start: 2025-07-30T00:00
End: 2025-07-31T07:30
Location: California

July 30 to 31, 2025 · NWS EKA · 1 event in 1 county or zone

8 earthquake occurred off the Kamchatka Peninsula in eastern Russia on the 29th of July, Pacific Time. The tsunami wave then traveled across the Pacific and impacted the Northwest California coast around midnight on the 30th.

Where it happened

Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

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The toll

Deaths: 0
Injuries: 0
Property damage: $1.0 million
Crop damage: None recorded
Events: 1

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS EKA wrote it up.

A magnitude 8.8 earthquake occurred off the Kamchatka Peninsula in eastern Russia on the 29th of July, Pacific Time. The tsunami wave then traveled across the Pacific and impacted the Northwest California coast around midnight on the 30th. Tsunami waves continue to impact the coast through the 30th into the 31st at levels exceeding warning and advisory levels in Crescent City.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Eureka, CA wrote its last area forecast discussion before the first event at Jul 29, 10:37 PM PST, 1 hour 23 minutes earlier.

Area forecast discussion, Jul 29, 10:37 PM PST, 1 hour 23 minutes before

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In the hours before

Special weather statement, Jul 29, 6:33 PM PST, 5 hours 27 minutes before

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Special weather statement, Jul 29, 7:48 PM PST, 4 hours 12 minutes before

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Special weather statement, Jul 29, 11:40 PM PST, 20 minutes before

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The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

1 tsunami. Local standard time, as filed.

Tsunami, Coastal Del Norte

When: July 30, 12:00 AM PST to July 31, 7:30 AM PST
Where: Coastal Del Norte forecast zone
Property damage: $1.0 million
Reported by: Emergency Manager
Coordinates: 41.745, -123.958 (the zone’s center; the record gives no point)

Tsunami waves impacted the Crescent City Harbor beginning around midnight on the 30th of July. The waves reached peak amplitude quickly in the first few hours just under 4 feet in amplitude. The waves then continued for over 24 hours, finally falling below the 1 foot tsunami advisory threshold during the morning of the 31st. The waves severely damaged or destroyed H-Dock in the harbor and damaged many of the connections between the other docks. The initial damage estimate is around $1 million.

What these are

Tsunami: A series of waves caused by an undersea earthquake, landslide or eruption.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

Every storm in California in 2025 Every state in 2025 This day in weather history Warnings in California, July 2025

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-30. Each event’s entry at NCEI: 1269808.