Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: THMC instabilities and the Multiphysics of Earthquakes   Theoretical approaches to earthquake instabilities propose shear dominated
instabilities as a source mechanism. Here we take a fresh look at the role of
possible volumetric instabilities preceding a shear instability. We investigate
the phenomena that may prepare earthquake instabilities using coupling of
Thermo-Hydro-Mechano-Chemical (THMC) reaction-diffusion equations in a THMC
diffusion matrix. We show that the off-diagonal cross-diffusivities can give
rise to cross-diffusion slow (no inertia) pressure waves and propose that a
resonance phenomenon of the long-wavelength limit causes constructive
interference and triggers the seismic moment release.

37
The categories of this paper are: supr-con
34
The categories of this paper are: chem-ph
23
The categories of this paper are: solv-int
22
The categories of this paper are: chao-dyn
16
The categories of this paper are: stat
11
The categories of this paper are: hep-lat
12
The categories of this paper are: nucl-th
32
The categories of this paper are: atom-ph
4
The categories of this paper are: cond-mat
13
The categories of this paper are: quant-ph
30
The categories of this paper are: q-alg
18
The categories of this paper are: econ
26
The categories of this paper are: bayes-an
6
The categories of this paper are: astro-ph
5
The categories of this paper are: gr-qc
1
The categories of this paper are: cs