Scaling properties of seismicity and faulting
نویسندگان
چکیده
The Gutenberg–Richter law and the Omori are both characterized by a scaling behavior. However, their relation is still an open question. Although several hypotheses have been formulated, comprehensive geophysical mechanism missing to explain observed variability of exponents b-value p-value, e.g., correlating seismic cycle statistical seismology tectonic processes. In this work, model for describing size-frequency temporal evolution seismicity proposed starting from simple assumptions. parameter how number earthquakes decreases after major event, p, turns out be positively correlated exponent frequency-size distribution seismicity, b, related tectonics. Our findings suggest that p?23(b+1). It implies relationship between fracturing regimes, “efficiency” process, duration sequences geodynamic setting exists, with outstanding potential impact on hazard. On other hand, simply reflects tendency segments Earth's crust reach mechanical stability via constrained energy-budget optimization. Each perturbation has probability growing earthquake or not, depending disorder within fault zone energy accumulated in adjoining volume, mainly controlling sequences. results consistent different sources settings, i.e., gravitational extensional having higher b p values, generating lower maximum magnitude respect strike-slip contractional which rather fueled elastic energy, showing they may generate events.
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ژورنال
عنوان ژورنال: Earth and Planetary Science Letters
سال: 2022
ISSN: ['1385-013X', '0012-821X']
DOI: https://doi.org/10.1016/j.epsl.2022.117511