Observation by Paul G. Abel: Observation of pressure wave from Hunga ...

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Paul G. Abel


Paul G. Abel


2022 Jan 15 - 19:00


2022 Jan 16 - 15:43


The Earth

  • Davis Vantage Pro 2 Weather Station

Observation of pressure wave from Hunga Tonga-Hunga Ha'apai.

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After seeing Nick and others record a peak in atmospheric pressure associated with pressure wave from Hunga Tonga-Hunga Ha'apai, we decided to check our own weather station data. It seems that we have also recorded a similar peak with another smaller one later one (some sort of shock wave)?

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Tracey Snelus
Tracey Snelus, 2022 Jan 16 - 20:13 UTC

Also spotted at my home weather station. This was also observed across the globe. There has been someone in the US who created a visual of the changes across the united states using online weather station data. It was also recorded in Switzerland a little later than us in the UK. The other peak later, I wonder if it could be the the shock wave from the other direction finally making it around? 

Nick James
Nick James, 2022 Jan 16 - 20:42 UTC

This is a really nice example of citizen science with people all around the world able to see how connected we are to a massive explosion in a far-off place. The second peak (the one around 0140UT) is the wave after it has come through the antipodes point expanding outwards again. It will be interesting to see how long this goes on for. It takes around 35 hours to get back to the source and so everything will repeat in a 35 hour cycle. That means the next event will be around 6am Monday morning. It will be interesting to see whether we can detect it.

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