計算してみました
2022-01-15
・噴火 13:14:45
↓
Hunga Tonga⇒Katsuura 7,756.56km
Propagation speed 290m/s
Arrival time 26,746sec.⇒7h26m46s
↓
・到達 20:40:31
Propagation of the shock waves, produced by the explosion of the volcano|Yasuhiro Tanaka
https://t.co/odm3q4BRCy https://t.co/YGK7WbaPZc