July 26, 2024Geophysical Journal InternationalOpen Access

A rapid analysis of aftershock processes after a moderate magnitude earthquake with ML-methods

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Authors

RFRossella FonzettiIstituto Nazionale di Geofisica e Vulcanologia AGAladino GovoniIstituto Nazionale di Geofisica e Vulcanologia DGDavide GoriUniversity of Bologna

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Implication

Observational analysis reveals widespread aftershock triggering across parallel fault segments in the Italian Apennines, indicating that pore pressure diffusion drives fault activation.

Key Points

Moderate earthquakes trigger widespread seismicity across extended fault systems, revealing complex mechanical interactions within the surrounding crustal layer.
A total of 2039 aftershocks illuminated complex aftershock processes along two 5–7 km parallel faults, which exceeded expected dimensions from the main shock.
Seismic sequence analysis using machine learning algorithms tracked aftershock hypocentres at 6 km depth, revealing rapid fluid pressure drops after the main event.
Highlights how pore pressure diffusion promotes seismic spread near critical fault segments, providing key geometric constraints for short-time forecasts.

Cite This Study

Fonzetti et al. (2024) studied this question.

synapsesocial.com/papers/68e5ee87b6db643587583014 https://doi.org/10.1093/gji/ggae262

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Implication

Observational analysis reveals widespread aftershock triggering across parallel fault segments in the Italian Apennines, indicating that pore pressure diffusion drives fault activation.

A rapid analysis of aftershock processes after a moderate magnitude earthquake with ML-methods

Discussion

Member takes

Implication

Key Points

Cite This Study

A rapid analysis of aftershock processes after a moderate magnitude earthquake with ML-methods

Discussion

Member takes

Implication

Key Points

Cite This Study

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