Table 1 Main characteristics of the datasets used in the present study (PGTA: peak ground translational acceleration)
Datasets | Kefalonia Island site | Literature data | ||||
|---|---|---|---|---|---|---|
Soft soil (phase 1) (ROSA) | Rock (phase 2) (RORA) | Soft soil (phase 3) (ROAN) | Ito, Japan (Takeo 2009) | HGSD station, Taiwan (Liu et al. 2009) | Garner Valley Downhole Array (Yin et al. 2016) | |
Number of events | 421 | 118 | 834 | 216 | 52 | 74 |
Dates | 6/02/2014–19/02/2014 | 19/02/2014–10/03/2014 | 11/03/2014–31/07/2016 | 20/04/1998–30/04/1998 | 8/05/2007–17/02/2008 | 11/10/2008–30/12/2014 |
Site conditions (V S30; m/s) | 250 | 830 | 250 | Unknown | Unknown | 280 |
Maximum PGTA (m/s2) | – | 0.15 | 3.72 | 3.44 | 0.47 | 1.20 |
Magnitude corresponding to maximum PGTA | – | 3.9 | 5.0 | 5.0 | 5.8 | 5.4 |
Maximum magnitude | 4.7 | 3.9 | 6.3 | 5.0 | 6.6 | 7.2 |
Slope: b | – | 0.96 | 0.89 | 1.09 | 0.97 | 0.90 |
Intercept: a | – | −2.86 | −3.05 | −2.90 | −2.92 | −2.99 |
Standard deviation | – | 0.15 | 0.14 | 0.11 | 0.12 | 0.26 |