Why Kamchatka's giant earthquake sent a smaller tsunami across the Pacific
Researchers have analyzed why the 2025 magnitude 8.8 earthquake off the coast of Kamchatka produced a smaller tsunami across the Pacific compared to the 1952 event. The study suggests that the specific location and nature of the seabed displacement were key factors in the wave's impact.
Why it matters
Understanding the mechanics of tsunami generation is critical for improving early warning systems and disaster preparedness in coastal regions.
edited by Lisa Lock , reviewed by Robert Egan
This article has been reviewed according to Science X's editorial process and policies . Editors have highlighted the following attributes while ensuring the content's credibility:
Add as preferred source Source region and simulation domain of the 2025 tsunami, DART locations, and comparison between observed and predicted waveforms. Credit: Communications Earth & Environment (2026). DOI: 10.1038/s43247-026-04050-5 In 2025, along parts of Kamchatka's coast in Russia, a magnitude 8.8 earthquake caused a tsunami to surge nearly 20 meters (65 feet) above sea level. Yet across the Pacific, its waves were much smaller than those produced by the region's great 9.0 earthquake in 1952. How could the tsunami climb so high near the source yet have a comparatively modest impact far away?
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