Fig. 2
![Fig. 2](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs40623-022-01615-4/MediaObjects/40623_2022_1615_Fig2_HTML.png)
Barometer records at the stations around Matsushiro, acquired when the atmospheric waves from the Tonga volcano passed the stations. The data at Matsumoto and Nagano shown here have been corrected for the estimated time shift (+ 26 s and + 677 s, respectively) of the data acquisition system