Table 1 Reference parameters.
From: Stress transfer outpaces injection-induced aseismic slip and triggers seismicity
Symbol | Description | Value |
|---|---|---|
\(\mu\) | Shear modulus | 32.4 GPa |
\(\sigma _n\) | Fault normal stress | 50 MPa |
\(\tau _a\) | Initial shear stress on VW stress heterogeneity | 32.7 MPa* |
\(\tau _0\) | Initial shear stress on rest of the fault | 29.9 MPa |
\(f_0\) | Reference friction coefficient | 0.6 |
\(V_0\) | Reference velocity | \(10^{-6}\) m/s |
a | Direct effect parameter | 0.01 |
b | State evolution parameter\(^{2}\) | 0.005 (VS), 0.015 (VW) |
\(d_c\) | Characteristic state evolution distance | 5 mm |
\(\Psi _0\) | Initial state variable | 0.72 |
\(q_0\) | Fluid injection rate | \(10^{-5}\) m/s* |
\(\eta\) | Fluid viscosity | \(10^{-3}\) Pa s |
\(\beta\) | Sum of elastic pore and fluid compressibility | \(10^{-8}\,\hbox {Pa}^{-1}\) |
\(\phi\) | Porosity | 0.1 |
k | Permeability | \(10^{-13}\) m\(^2\) |
\(L_y\) | Domain size in y direction | 100 km |
\(L_z\) | Domain size in z direction | 100 km |
