The United States Geological Survey (USGS) detected another pass of the atmospheric pressure wave that was being recorded around the globe.
The attached image contains infrasound records from three Cascade volcanoes. Red box is initial airwave from Tonga eruption. Gold box is the airwave as it came around on it’s second lap.
Source: United States Geological Survey volcano activity update 16 January 2022
An impressive video of Himawari-8 satellite sensor that captured the pressure wave on 15 January traveling across the globe (source: @TransTerraScape/twitter)
1月15日の16時10分～20時50分までのひまわり8号のバンド8(6.2μm)上層水蒸気の画像から前後フレームの差分(10分間)を取ってみると、日本時間20時40分頃のトンガ諸島の火山噴火によるソニックブーム(?)の到着が可視化できました。興味深いのは同心円の模様が何重にも確認できることです。 pic.twitter.com/SShDsTciV0
— TTS (@TransTerraScape) January 16, 2022