Fig. 2From: Tsunami-induced magnetic fields detected at Chichijima Island before the arrival of the 2011 Tohoku earthquake tsunamiMagnetic field observations at a Kanoya (KNY) and b Chichijima (CBI). The blue line is the horizontal component H and the red line is the vertical component Z. The red arrow indicates the arrival of the anomalous signal associated with the tsunamiBack to article page