Seismic and Aseismic Deformation in the Brittle Crust
A special issue of Geosciences (ISSN 2076-3263).
Deadline for manuscript submissions: 31 December 2024 | Viewed by 366
Special Issue Editors
Interests: crustal deformation; borehole strainmeter data processing; seismology; natural hazards; applied geophysics
Interests: geology exploration; geology seismics exploration; geophysics; tectonics plate; tectonics; structural geology; remote sensing; structural analysis; spatial analysis
Special Issue Information
Dear Colleagues,
Brittle deformation represents the primary mode of deformation of Earth's crust. Recent observations suggest that seismogenic faults accommodate tectonic plate motion through a wide variety of slip modes, ranging from earthquakes to slow aseismic slip. Aseismic slip releases elastic energy slowly without radiating seismic waves and plays an important role in the initiation, propagation, and arrest of large earthquakes. Other factors, such as the presence of fluids, stress, and fault material heterogeneities, also play an important role in the fault mechanics. Understanding the physics and the energy partitioning between seismic and aseismic slip on faults at all scales and in various tectonic settings is essential to assess their impact on the seismic cycle. To improve our comprehension of seismic and aseismic deformation in the brittle crust, we invite contributions that explore the themes described herein through geophysical and geological observations, laboratory experiments, numerical modeling, and multidisciplinary approaches.
Dr. Alexandre Canitano
Dr. Andreas Karakonstantis
Guest Editors
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Keywords
- brittle deformation
- seismic–aseismic slip partitioning
- stress interactions
- pore fluid diffusion
- fault rheology
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Planned Papers
The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.
Title: TITLE Scaling laws analysis and spatiotemporal evolution of the recent three strongest earthquakes in the Ionian Sea during the period 2014-2019
Authors: Filippos Vallianatos; Kyriaki Pavlou; Georgios Michas
Affiliation: 1. Section of Geophysics – Geothermics, Department of Geology and
Geoenvironment, National and Kapodistrian University of Athens, 15784
Panepistimiopolis, Athens, Greece.
2. Institute of Physics of Earth’s Interior and Geohazards, UNESCO Chair
on Solid Earth Physics and Geohazards Risk Reduction, Hellenic
Mediterranean University Research Center, Grete, Greece.
Abstract: The observed scaling properties in the three aftershock sequences of the
recent strong earthquakes which took place in the Ionian islands’ region
are presented. In the analysis, the frequency-magnitude distributions in
terms of the Gutenberg-Richter scaling relationship, along with the
temporal evolution of the aftershock sequences, as described by the
Omori-Utsu formula with a p value close to one which is notably close to a
logarithmic evolution, are studied. The processing of interevent times
distribution, based on non-extensive statistical physics indicates a
system in an anomalous equilibrium with a cross over from anomalous (q>1)
to normal (q=1) statistical mechanics, for great interevent times. A
discussion of the cross over observed, in terms of superstatistics is
given for all aftershock sequences. Furthermore, the obtained three values
of q suggest a system with one or two degrees of freedom. Additionally, a
scaling of the migration of aftershock zones as a function of the
logarithm of time is discussed in terms of rate strengthening rheology
that govern the evolution of the afterslip process.
