Fig. 5
From: Precise tilt measurement by seafloor borehole tiltmeters at the Nankai Trough subduction zone
Tidal responses of the two tiltmeters in one month. a Time series data of tilt and pressure. The direction with the largest amplitude of tidal response is shown for tilt variation. The pressure was measured at the nearest DONET station (KMB06, approximately 4 km from the tiltmeter). b Particle motion of the tilt recorded on July 5, 2022. The particle motion is colored according to the pressure variation. Positive values of tilt imply uplift in East and North directions for the horizontal and vertical directions, respectively. Gray lines are daily particle motions on days in July 2022 on which no significant earthquakes were recorded