A comparable ocean impact would be the 2004 Indian Ocean earthquake, which was a...

Gare · on Jan 29, 2025

I'd assume quakes transform much more energy into tsunami waves than meteorite hit does.

fghorow · on Jan 29, 2025

That is not correct.

Earthquakes' energy doesn't all go to displacing water and hence generating tsunamis. An ocean impact is significantly more efficient at transferring energy into tsunamis.

https://www.sciencedirect.com/science/article/abs/pii/B97804...

giantg2 · on Jan 30, 2025

Interesting, I would assume surface wave dissipation to counteract that compared to seabed origin.

cyberax · on Jan 30, 2025

2004 Indian Earthquake was 9.1-magnitude, so it was about 150 megatons of TNT.

ortusdux · on Jan 30, 2025

The USGS estimated 1.1×10^17 Newton-Meters of energy, which converts over to ~26Mt TNT.

https://web.archive.org/web/20100404013939/http://neic.usgs....