Detecting the Hunga Tonga-Hunga Ha'apai eruption with a barometer
Here's a bit of fun around the Hunga Tonga-Hunga Ha'apai eruption.
We all know about the tsunami alerts and the distance the sound was heard from.
But did you know that domestic meteorological instruments in Perth were able to detect the eruption?
Here is a shot of my personal weather station's history for yesterday with some very rough annotations.
The eruption was at about 12:10 AWST, and just over six hours later, my barometer detected the shockwave. About an hour after that, it registered the rebound shock.