INTENSE QUANTUM OF THE DEFORMATION IN DEEP CRUST, AS SEEN FROM GEOMECHANICAL MODELING IN SOUTHERN CALIFORNIA

V. G. Bondur; Бондур В. Г.; M. B. Gokhberg; Гохберг М. Б.; I. A. Garagash; Гарагаш И. А.; D. A. Alekseev; Алексеев Д. А.

doi:10.31857/S2686739723601126

INTENSE QUANTUM OF THE DEFORMATION IN DEEP CRUST, AS SEEN FROM GEOMECHANICAL MODELING IN SOUTHERN CALIFORNIA

Authors: Bondur V.G.¹, Gokhberg M.B.¹^,2, Garagash I.A.¹^,2, Alekseev D.A.¹^,2^,3
Affiliations:
1. Institute for Scientific Research of Aerospace Monitoring “Aerocosmos”
2. Schmidt Institute of Physics of the Earth, Russian Academy of Science
3. Moscow Institute of Physics and Technology
Issue: Vol 513, No 1 (2023)
Pages: 112-119
Section: GEOPHYSICS
Submitted: 30.01.2025
Published: 01.11.2023
URL: https://vestnik.nvsu.ru/2686-7397/article/view/649795
DOI: https://doi.org/10.31857/S2686739723601126
EDN: https://elibrary.ru/LDPUJN
ID: 649795

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Abstract

In a detailed analysis of the local features of the stress-strain state within the framework of the geomechanical model of Southern California, a rapidly developing high-amplitude shear deformation anomaly was identified in the upper crustal interval (at depths of up to 10 km) – the so-called “intense deformation quantum” – with a maximum increase in deformation by two orders of magnitude within 0.5 month. Such “quanta” can be integral elements of the entire deep deformation process associated with seismicity. The paper discusses the quantitative characteristics of deep deformation “quanta” and the conditions for their occurrence.

Keywords

seismicity, deformation, quantum, stress state, faulting of the Earth’s crust

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