Fig. 7

Example of monthly changes in the gravity as equivalent water thickness and the earthquake number from April 2002. The black line shows the gravity data, and the red broken line does the fitted curve using Eq. (1). The vertical gray bars represent the earthquake number. The upper figure a shows the results at a grid of (longitude, latitude) = (275°, 5°), and the lower b shows at an adjacent grid of (longitude, latitude) = (275°, −5°) for comparison