Fig. 1
From: Joint inversion of ocean-bottom pressure and GNSS data from the 2003 Tokachi-oki earthquake
a Map of the epicentral region of the 2003 Tokachi-oki earthquake and locations of OBP gauges and GNSS stations that are used for the joint inversions, and tide gauges used in tsunami simulation. The epicenter of the 2003 Tokachi-oki earthquake is marked as a red star. The gray star indicates the epicenter of the 1952 Tokachi-oki earthquake. The focal mechanism solution is from Yamanaka and Kikuchi (2003). The subfaults displayed as yellow lines are taken from Tanioka et al. (2004a) and the blue lines are newly extended fault portions in this study. The dark gray dashed lines indicate the rupture subregions (Satake et al. 2005b). b Observed tsunami records at the four OBP stations. The black lines are OBP records after removing the tide effect and the cyan lines show tsunami signals after applying a low-pass filter and converting to a pressure unit of mH\(_{2}\)O