Table 1 Hydrological and mechanical parameters for the reference model*.

From: Operational and geological controls of coupled poroelastic stressing and pore-pressure accumulation along faults: Induced earthquakes in Pohang, South Korea

 

Poroelastic and transport properties†

Basement (b)

Fault (f)

Fluid (w)

κi (m2)

7.6 × 10−19

1 × 10−15

—

\({\phi }_{i}\) (−)

0.0048

0.02

—

\({G}_{i}\) (GPa)

13.8‡

6

—

\({\lambda }_{i}\) (GPa)

10‡

4

—

\({\lambda }_{u,i}\) (GPa)

20.8

11.6

—

\({\nu }_{i}\) (−)

0.21‡

0.2

—

\({\alpha }_{i}\) (−)

0.4

0.79

—

\({\rho }_{i}\) (kg/m3)

2740

2500

1000

\(\eta \) (Pa\(\cdot \)s)

—

—

0.4 × 10−3§

Di (m2/s)

1 × 10−4

8.3 × 10−3

—

  1. *The parameter values are for the reference Case 1 in Table 2.
  2. †The subscript i represents each material used in the model: basement (b), fault (f), and fluid (w).
  3. ‡Mechanical parameter values of basement rocks for a drained condition are from28.
  4. §Brine viscosity ranges 0.4 × 10−3(±0.05 × 10−3)55.
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