by Eric Beaucé, Gaspard Farge, Leila Mizrahi, Kelian Dasher-Cousineau & Davide Zaccagnino SUBMIT YOUR ABSTRACT! CLICK HERE: https://agu.confex.com/agu/agu25/prelim.cgi/Session/251479 The spatio-temporal patterns in seismicity — e.g. …
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Large earthquakes are more predictable than smaller ones
Large earthquakes have been viewed as highly chaotic events regardless of their magnitude, making their prediction intrinsically challenging. Here, we develop a mathematical tool to …
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Are Foreshocks Fore-shocks?
Earthquakes are mechanical instabilities in the brittle lithosphere produced by the progressive accumulation of stress in the crust over centuries. The more extended the fractures, …
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Fault dip vs shear stress gradient
In the brittle regime, faults tend to be oriented along an angle of about 30 relative to the principal stress direction. This empirical Andersonian observation …
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Clustering Analysis of Seismicity in the Anatolian Region with Implications for Seismic Hazard
The Anatolian region is one of the most seismically active tectonic settings in the world.Here, we perform a clustering analysis of Turkish seismicity using an …
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Global versus local clustering of seismicity: Implications with earthquake
prediction
Clustering is the essence of earthquake occurrence. Although not exhaustive, our analysis is a first attempt to understand what information may be hidden in partial, …
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The impact of faulting complexity and type on earthquake rupture dynamics
We analysed the earthquake double-couple as a function of the faulting type. Here we show that it impacts the moment tensors of earthquakes: thrust-faulting events are characterized by higher double-couple components with respect to strike-slip- and normal-faulting earthquakes.
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Correlation between seismic activity and tidal stress perturbations highlights growing instability within the brittle crust
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.
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Scaling properties of seismicity and faulting
In this work, a model for describing the size-frequency scaling and the temporal evolution of seismicity is proposed starting from simple assumptions. The parameter describing how the number of earthquakes decreases after a major seismic event, p, turns out to be positively correlated to the exponent of the frequency-size distribution of seismicity, b, and related to tectonics.
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Variable seismic responsiveness to stress perturbations along the shallow section of subduction zones: the role of different slip modes and implications for the stability of fault segments
Assessing the stability state of fault interfaces is a task of primary interest not only for seismic hazard, but also for understanding how the earthquake machine works
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