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Table 1 Hypocenter coordinates and focal mechanisms of the target earthquakes

From: Characteristics of seismic activity before and after the 2018 M6.7 Hokkaido Eastern Iburi earthquake

EventOccurrence timeMag.Lat. (°)Lon. (°)Dep. (km)StrikeDipRake
(i)26-Sep-03, 04:50:07.648.041.7797144.078542.31; 24978; 1581; 127
(ii)1-Jul-17, 23:45:52.925.142.7877141.85927.47159; 2040; 5856; 115
(iii)6-Sep-18, 03:07:59.336.742.6908142.006737.04134; 34930; 6559; 107
(iv)21-Feb-19, 21:22:405.842.7662142.003333.3131; 35024; 7154; 105
  1. Listed are (i) the 2003 M8.0 Tokachi-Oki earthquake, (ii) an off fault M5.1 pre-shock, (iii) the M6.7 main shock, and (iv) its largest aftershock