That’s a very interesting insight kpjamro; thanks for posting your data!
Many variables can condition a sonic boom propagation and detection: atmosphere conditions such as humidity, winds, pollution, temperature; the position of the observer; terrain conditions, and more. Do you have a link to the press report? I would be interested in reading through it as reflections of sonic booms have been detected by many geographical features, mountains, and even single buildings…
Regarding SWARM, you can try the solution I described here SWARM - Counts vs M/S - #6 by Stormchaser to see if you can manage to display Pascals on the software correctly.