Scott Manley has done an excellent summary video of the Tongan volcano, much of the science and history of it as well as the effects thousands of miles away. The area around the volcano had completely reformed in the last ten years. He has collected some great footage together.
It’s interesting watching air pressure waves travel across Japan and the USA. Ken Stewart found the compression- decompression wave hit the east coast of Australia at about 5:16 Qld time and took 3 hours and 24 minutes roughly to get to Shark Bay, an average speed of about 1,160 kph. The decompression was about half an hour after the first peak and can be seen (still) in weather station pressure data.
Eruptions of Hunga Tonga-Hunga Ha’apai are roughly 900 years apart and this one was on schedule.
Thanks to Greg
Sending best wishes for the poor people of Tonga. Planes are on the way to help, slightly complicated because Tonga is still Covid free, and people there are not too keen on dealing with that at the same time as the recovery.
Will Hunga Tonga-Hunga Ha’apai make a difference to global temperatures or will just it provide a convenient excuse for cooling that may be on the way in 2022 anyhow?