HILO, Hawaii — July 29, 2025, 10:45 PM HST — The Pacific Tsunami Warning Center (PTWC) has downgraded its tsunami warning to a Tsunami Advisory for the State of Hawaii following a powerful magnitude 8.8 earthquake that struck off the east coast of Kamchatka, Russia, earlier today.
The earthquake occurred at 1:25 PM HST at coordinates 52.2°N, 160.0°E, triggering widespread monitoring across the Pacific. Initial concerns of a major tsunami have been eased, with PTWC confirming that a major tsunami is not expected to strike Hawaii.
However, sea level changes and strong currents have been observed and may continue to affect all Hawaiian coastlines for several hours. These conditions pose potential hazards to swimmers, boaters, and anyone near the shore, including beaches, harbors, and marinas.
Recorded Wave Activity in Hawaii:
- Kahului, Maui: 1.74 meters (5.7 feet)
- Hilo, Hawaii Island: 1.50 meters (4.9 feet)
- Hanalei, Kauai: 1.17 meters (3.9 feet)
- Haleiwa, Oahu: 1.21 meters (4.0 feet)
- Honolulu, Oahu: 0.33 meters (1.1 feet)
- Port Allen, Kauai: 0.42 meters (1.4 feet)
These measurements reflect tsunami amplitudes relative to normal sea level and not full wave heights. The highest readings were recorded on Maui and the Big Island.
Advisory in Effect
The advisory, issued at 10:38 PM HST, urges the public to remain cautious. While no widespread inundation is expected, dangerous currents and unpredictable surges may continue. Authorities recommend staying out of the water and away from the shoreline until the advisory is lifted.
Emergency management officials continue to monitor the situation closely and will provide updates as necessary.
