Fig. 8

Synthetic ground accelerations of two dimensions (EW and NS) and three dimensions (EW, NS and UD) observed by a K-NET station (HKD128) in Iburi earthquake. a Horizontal ground acceleration (synthesis of EW and NS directions). b Total ground acceleration (synthesis of EW, NS and UD directions). The ground acceleration data are derived from the National Research Institute for Earth Science and Disaster Prevention (NIED)