Figure 2From: Three-dimensional magnetotelluric imaging of crustal fluids and seismicity around Naruko volcano, NE JapanApparent resistivity and phases from determinant of impedance tensors for four representative periods. (a) 0.4 s, (b) 4 s, (c) 40 s, and (d) 400 s. For each period, observed and calculated apparent resistivities and phases are shown by colored circles. The two triangles represent Naruko volcano in the east and Mukaimachi caldera in the west.Back to article page