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Updated: Sep 24, 2025

Kinematic History of a Salient-recess Junction Explored through a Combined Approach of Field Data and Analog Sandbox Modeling
Published on: August 5, 2016
Correlation between seismic activity and tidal stress perturbations highlights growing instability within the brittle
Davide Zaccagnino1, Luciano Telesca2, Carlo Doglioni3,4
1Sapienza University, Earth Sciences Department, Rome, 00185, Italy. davide.zaccagnino@uniroma1.it.
Abstract:
Faults become more and more responsive to stress perturbations as instability mounts. We utilize this property in order to identify the different phases of the seismic cycle. Our analysis provides new insights about the features of impending mainshocks, which are proposed to emerge from a large-scale crustal-weakening preparation process whose duration depends on their seismic moments, according to the power-law T [Formula: see text] M[Formula: see text] for M[Formula: see text] [Formula: see text] 10[Formula: see text] N m. Moreover, further studies are performed about the impact of tidal stress perturbation on seismicity; in particular, the relationship between frequency-magnitude scaling and perturbations is discussed, showing that the sensitivity of earthquakes to solid Earth tides decreases as their magnitudes increase.
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