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Earthquake Triggers Pacific Tsunami: Satellite Data Enhances Models

12/27/2025

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Summary

Story summary

On July 29, 2025, a magnitude 8.8 earthquake in the Kuril-Kamchatka subduction zone triggered a Pacific-wide tsunami.
NASA's Surface Water and Ocean Topography (SWOT) satellite captured high-resolution data showing a complex, dispersive wave pattern.
Researchers found that including dispersive effects improves tsunami models by accounting for energy distribution changes near land.
The findings were published in The Seismic Record and support integrating satellite data with existing models to improve forecasts.

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Story summary

On July 29, 2025, a magnitude 8.8 earthquake in the Kuril-Kamchatka subduction zone triggered a Pacific-wide tsunami.
NASA's Surface Water and Ocean Topography (SWOT) satellite captured high-resolution data showing a complex, dispersive wave pattern.
Researchers found that including dispersive effects improves tsunami models by accounting for energy distribution changes near land.
The findings were published in The Seismic Record and support integrating satellite data with existing models to improve forecasts.