Fig. 1From: Inertial effects due to eruption-induced atmospheric disturbances identified by superconducting gravimeter observations at Matsushiro, JapanLocations of gravimeter and barometer stations used in this study. For station codes, see Table 1. The square indicates the area in which Newtonian attraction by the atmospheric mass is calculated. Atmospheric waves from the Tonga volcano travel from the south-east direction through the north-west directionBack to article page