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Articles | Volume 17, issue 2
Articles | Volume 17, issue 2
https://doi.org/10.5194/se-17-311-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/se-17-311-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 17, issue 2
Research article
 | 
24 Feb 2026
Research article |  | 24 Feb 2026

The role of fault network geometry on the complexity of seismic cycles in the Apennines

Constanza Rodriguez Piceda, Zoë K. Mildon, Billy J. Andrews, Yifan Yin, Jean-Paul Ampuero, Martijn van den Ende, Claudia Sgambato, and Percy Galvez

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Short summary
We investigate how the spatial arrangement of normal faults in the Italian Apennines affects earthquake timing and size. Computer-based models show that wide networks with faults offset across-strike produce more irregular and variable earthquakes, while narrow networks with fewer across-strike faults lead to more regular events. Faster-moving faults are more sensitive to nearby positive stress interactions, highlighting the need to consider fault geometry in seismic hazard assessments.
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