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September 10, 2025Open Access

Using ruptures from an earthquake cycle simulator to test geodetic early warning system performance

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Observational analysis tested G-FAST performance for earthquake magnitude estimation in New Zealand, suggesting improved tsunami preparedness.

G-FAST produced moment magnitude estimates that capture 90% accuracy from synthetic displacement data.
The analysis utilized synthetic rupture scenarios generated by the earthquake simulator RSQSim, comparing PGD values.
Realistic ground motions from RSQSim ruptures improved performance in characterizing large subduction earthquakes.
The framework supports enhanced tsunami early warning procedures leveraging geodetic monitoring data.

Solares-Colón et al. (2025) studied this question.

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Observational analysis tested G-FAST performance for earthquake magnitude estimation in New Zealand, suggesting improved tsunami preparedness.