SciencePhys.orgThe 2025 Kamchatka tsunami kept the Pacific ringing for more than ten hours. Its rhythm could help tsunami warnings
The massive magnitude 8.8 Kamchatka earthquake in July 2025 sent tsunami waves ringing across the Pacific for over ten hours, and new research shows the pattern could improve early warnings.
On July 29, 2025, at 23:24 Universal Time, a long stretch of seafloor off Russia's Kamchatka Peninsula was thrust upward. The magnitude 8.8 earthquake was the largest on Earth since the Tohoku earthquake of 2011, according to the U.S. Geological Survey, and within minutes a tsunami was spreading across the Pacific. Warnings went out from Japan to Chile. On Shumshu, in the Kuril Islands, the water splashed up to about 19 meters (62 feet) high.
Researchers studied the July 2025 magnitude 8.8 Kamchatka earthquake tsunami, the largest on Earth since Japan's Tohoku quake in 2011.
Six deep-ocean DART buoys tracked the waves, with the nearest station recording an 85-centimetre crest just 27 minutes after the quake struck.
The team found that earthquake data alone could predict the tsunami's ocean-wide rhythm, a finding that could sharpen future tsunami warning systems.
The study found that starting from earthquake data alone, researchers could accurately model tsunami wave patterns, which could help improve future warning systems.
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