Fig. 6From: Anomalies of air pressure in Serbia as a result of the eruption of the volcano Hunga Tonga–Hunga Ha'apai in mid-January 2022Azimuthal map with two construction poles: Belgrade (a) and HT–HH (b). The red line indicates the direction of the first shock wave propagation, and the blue line the direction of the second shock wave propagationBack to article page