The tier for nuking or creating Korea.

[Ricsi-viragosi]

So, I have a few characters that can both destroy Korea (either said with an explosion in the background of the manga, or with a statement of creating an expanding sun), as well as creating a planetoid pocket dimension housing Korea (with it being stated that it takes energy to create and uphold to dimension).

What tiers would those be?


For reference on the planetoid, it also has a lot of space around it.

 

[Flashlight237]

That thing definitely looks like real-life Korea. Just destroying the land itself, Korea has an area of 219155 km, which equates to 264.1197 km in radius. Plugging the figures, I can use this formula for a nuclear explosion: Y^0.33 * 0.28

Going off this, we got a result of 1032925171.1116 kilotons, or 1.0319 Teratons of TNT. That alone makes it miniscule; in fact, it just touches baseline Low 6-B, or Small Country Level. It's almost as if Korea could've been used as a baseline instead of some arbitrary value.

 

[Ricsi-viragosi]

Looking it up... Korea is pretty elongated.
The Korean Peninsula is a peninsula located in East Asia. It extends southwards for about 1,100 km (680 mi) from continental Asia into the Pacific Ocean (from wikipedia).


Even assuming the explosion goes off in its exact middle, that means the explosion would need to be 550 kilometers wide. The Nuclear Effects Calculator tells me it'd need to be 18000000 megatons (assuming ground-contact airburst is what needs to be used for this), which is 18 teratons if I got it right.

 

[Flashlight237]

We usually go off area for calcs, tho...

Now if you REALLY wanna go out of your way and destroy the goshdang planetoid as a whole, well, I did this: http://prntscr.com/uu34me

I measured Jeju Island as the reference point for the planetoid, which would be 78.36 km in length. It was 79.8 pixels long in the screencap. I then went out of my way to use the Rectangular Select Tool to measure out the planetoid as the thing was a bit too awkward-looking to measure otherwise and got this: http://prntscr.com/uu3770

The thing's dimensions are 848x823 px. That would equate to cross-sections that are the following:

Length: 848/79.8*78.36=832.6977 km
Width: 823/79.8*78.36=808.1489 km

Now l got this for the area after measuring all that out. Bear in mind that the cross-sections work the same as the diameter in the circle, so I had to divide each by 2:

(832.6977/2)*(808.1489/2)*π=528528.7798 km²

Add in 35 km for continental crust's thickness (bearing in mind that the thing doesn't allow us to accurately measure thickness otherwise) (https://www.cs.mcgill.ca/~rwest/wikispeedia/wpcd/wp/c/Continental_crust.htm ) and you get a volume of about 18498507.293014 km³

Only 219155 km² of that is actually the continent itself, so out of all that, we would know that 7670425 km³, or 7.670425*10^15 m³ of that volume is continental. That would put Korea itself's mass at, assuming 2600 to 2800 kg/m³ for granite (a main constituent of crust), we'd get a mass of 1.9943105*10^19 kg to 2.147719*10^19 kg

The rest is covered by water. Seawater has a density of 1024 kg/m³ at 20 degrees celsius (http://www.ric.edu/faculty/PSCI103/Seawater/Seawater_notes.htm ), so there's that. Now, I had to really go out of my way for this one. I split both parts of the ocean into two. I had to make a circle encompassing the thing beforehand (making sure I got the radius right) and, well...: http://prntscr.com/uu3z2l

To the left, the deepest part of the ocean I can get is 367 feet near dead-center: http://prntscr.com/uu42c0

On the right? 9812 feet in this marked section: http://prntscr.com/uu41ge

This in mind, this is how much of the planetoid's area is water: 528528.7798-219155=309373.7798 km²

Divide that by 2 and you got 154686.8899 km² for each side. Here are the median values of depth for each side.:

(367/2)*12*2.54/100=55.9308 m
(9812/2)*12*2.54/100=1495.3488 m

Plugging these in, we got the following.

Left: 154686.8899*.0559308=8651.7615 km³
Right: 154686.8899*1.4953488=231310.8552 km³
Total: 8651.7615+231310.8552=239962.6167 km³=2.3996*10^14 m³

Using this, we'll take our figure of 1024 kg/m³ for seawater's density from before and her a mass of 2.4572*10^17 kg.

This would leave just another 10588119.676324 km³ of crust left unaccounted for. This unaccounted-for crust would have a mass of 2.7529 to 2.9657*10^19 kg.

Adding that and Korea's crust together, I got a mass value ranging from 4.7472 to 5.1124*10^19 kg. This would equate to... (7670425+10588119.676324)=18258544.68 km³, or 1.8258*10^22 cm³ of rock. Assuming 8 j/cm for merely fragmenting that thing, you get a value of 1.4607*10^23 joules, or 34.9112 teratons of TNT. Just a smidge higher... at 6-B, aka Country Level. Yep.

So you either get Baseline Low 6-B for destroying the land area of that thing, or solid 6-B for the entire bulk of the thing.

 

[Ricsi-viragosi]

Whew, thanks dude.

 

[Flashlight237]

Oh! Almost forgot the last part. Apparently the thread is claiming that creating Korea is a thing as well. Normally, E=mc² isn't a valid method for creating something, but the OP implies that it is in this case. In that case, here goes.

Mass of Korea: 1.9943105*10^19
Mass of Oceanic Rock: 2.75291116*10^19 kg
Total Rock Mass: 4.747221616*10^19 kg
Oceanic Mass: 2.457217195*10^17 kg
Total Mass (Low-End): 4.771793788*10^19 kg
Energy: 4.771793788*10^19*299792458²=4.2887*10^36 joules

On the low end, creating that thing out of energy itself requires 4.2887*10^36 joules, or 1.025 Ninatons of TNT. That's well into 5-A, or Large Planet level.

On the high end...

Total Rock Mass: 5.112392509*10^19 kg
Oceanic Mass: 2.457217195*10^17 kg
Total Mass (High-End): 5.136964681*10^19 kg
Energy: 5.136964681*10^19*299792458²=4.6169*10^36 joules

On the high end, this would be 4.6169*10^36 joules, or 1.1035 Ninatons of TNT. Still 5-A, nothing different.

But like I said, this isn't really a valid method; otherwise, the mere act of creating a raisin (0.5 g according to a site about grape toxicity for dogs) would be 7-C or Town Level; which reeeeeeeeeally wouldn't sit well with anyone.

 

[Ricsi-viragosi]

Yeah, while the fact that creating Mattar out of nothing is impossible to any but gods is brought up, I do know using that would need some very substantial feats for it.

Plus, it contradicts things like a character creating a 3km wide pocket dimension despite their highest feat being punching hard enough to recreate the Tsar Bomba