Table 1 Information of the foreshock, mainshock (BP3), and aftershock (BP2) of the 2016 Kumamoto earthquake sequence with the epicentral distance, fault distance, observed PGA and PGV, at KU.KMP1 and KUMA
Target earthquake | Origin Time (JST) | Lat | Long | Depth (km) | Mj | KU.KMP1 | KUMA | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Epicentral Dis. (km) | Fault Dis. (km) | PGA (cm/s2) | PGV (cm/s) | Epicentral Dis. (km) | Fault Dis. (km) | PGA (cm/s2) | PGV (cm/s) | ||||||||||||||
NS | EW | UD | NS | EW | UD | NS | EW | UD | NS | EW | UD | ||||||||||
Foreshock | 2016-04-14 21:26:34.43 | 32.74 | 130.81 | 11.39 | 6.5 | 19.45 | 19.70 | 102.4 | 112.8 | 100.2 | 9.4 | 11.8 | 4.3 | 11.92 | 12.09 | 441.5 | 388.8 | 227.0 | 69.2 | 46.4 | 12.9 |
Mainshock | 2016-04-16 01:25:05.47 | 32.75 | 130.76 | 12.45 | 7.3 | 15.00 | 16.78 | 168.2 | 231.5 | 249.1 | 20.8 | 25.0 | 8.0 | 7.41 | 10.47 | 574.7 | 509.1 | 444.0 | 66.8 | 52.2 | 18.5 |
Aftershock | 2016-04-16 03:03:10.78 | 32.96 | 131.09 | 6.89 | 5.9 | 46.26 | – | 12.8 | 11.5 | 5.7 | 1.0 | 0.7 | 0.4 | 42.76 | ー | 30.6 | 33.2 | 12.6 | 1.97 | 1.89 | 0.63 |