Research on the Tonga eruption last year.... Grauniad.
"Scientists have used eye and earwitnesses accounts, along with data from tide gauges, satellites, evidence of broken windows and other sources, to calculate that the eruption of the Hunga Tonga-Hunga Ha’apai volcano, which occurred on 15 January 2022 and was felt around the world, likely involved five blasts. The last of them released energy equivalent to about 15 megatonnes of TNT."
Tonga volcano explosion equalled most powerful ever US nuclear testhttps://uk.yahoo.com/news/tonga-volcano-explosion-equalled-most-180019018.html
RogerP
West Lindsey district of Lincolnshire
Everything taken together, here in Lincolnshire are more good things than man could have had the conscience to ask.
William Cobbett, in his Rural Rides - c.1830