Table 1 Physical properties in the elastic layer and underlying viscoelastic layer of the present study and previous studies.
From: Geodetic evidence of viscoelastic relaxation after the 2008 Iwate-Miyagi Nairiku earthquake
Rigidity | Bulk modulus | Density | Thickness | Viscosity | Maxwell time | ||
|---|---|---|---|---|---|---|---|
[GPa] | [GPa] | [kg/m3] | [km] | [Pa s] | [Year] | ||
Elastic layer | |||||||
Present study 1.5 yr | 30 | 50 | 2.8 × 103 | 19.5–25.5 | ∞ | — | |
Present study 2.2 yr | 30 | 50 | 2.8 × 103 | 17.0–23.5 | ∞ | — | |
Suito and Hirahara (1999) | 30 | 49 | — | 30 (fixed) | ∞ | — | |
Thatcher et al. (1980) | 30 | — | — | 30 | ∞ | — | |
Elastic layer | |||||||
Present study 1.5 yr | 60 | 100 | 3.3 × 103 | 440 | 2.4–3.4 × 1018 | 1.3–1.8 | |
Present study 2.2 yr | 60 | 100 | 3.3 × 103 | 440 | 3.1–4.8 × 1018 | 1.6–2.5 | |
Suito and Hirahara (1999) | 59 | 110 | — | 250–265 | 9.0 × 1018 | 5 | |
Thatcher et al. (1980) | 30 | — | — | ∞ | 1–6 × 1020 | 20 | |