At the end of episode 7, Uzi survives an explosion from the epicenter strong enough to send her into space along with chunks of rubble from Copper 9’s surface, with that explosion being the result of a planet core collapse caused by Cyn jumping down into the core.
Copper 9: 911 px/12742000 meters
Screen: 576 px
Actual planet diameter: sqrt(1-(tan(35)*(911/576))^2/((tan(35)*(911/576))^2+1))*12742000 is 10196613.9188 meters
Explosion diameter: 124 px/1387903.54109 meters (radius is 693951.770544 meters)
693951.770544^3*((27136*1.37895+8649)^(1/2)/13568-93/13568)^2 is 2.6857982e13 tons/26.857982000000003 teratons, or Country level
However, that was only the explosion part. Because debris was sent flying into space alongside Uzi, let’s take the KE of the rubble being sent into space.
Crater diameter: 124 px/1734366.63008 meters (radius is 867183.315038 meters)
The depth of the crater is down to the core of the planet, so it’s the planet’s radius of 6371000 meters.
Volume (Cone): (Pi*867183.315038^2)(6371000/3) is 5.0171611e18 m^3
Density of earth is 5520 kg/m^3
5520*5.0171611e18 is 2.7694729e22 kg
Screen: 576 px
Copper 9 distance: 10196613.9188 * 576 / [911 * 2 * tan (70deg / 2)] is 4603660.66627 meters
Timeframe (using a frame-by-frame player): 134/30 frames (Between the first frame of the screen turning black and the first frame of the subtitle showing up)
4603660.66627/(134/30) is 1030670.29842 m/s
KE: 14709795864754239134352614737800000 joules/3.5157255890904011153 yottatons, or Planet level+
At least now there is consistency for planetary Murder Drones, especially since Nori and Yeva were confirmed to have survivived Copper 9’s first planet core collapse from close up.