Into what non-navigable Pacific Ocean area did structural elements of the Progress MS16 cargo ship & Pirs module fall? Are there maps of these areas?

Question

This recent Roscosmos tweet (found in CNET's See astronaut's wild view of a discarded ISS module burning up) says:

The non-combustible structural elements of the #ProgressMS16 cargo ship and the #Pirs module fell in a non-navigable area of the Pacific Ocean.

Thank you for your work, Progress and Pirs!

Question: Into what non-navigable Pacific Ocean area did structural elements of the Progress MS16 cargo ship & Pirs module fall? Are there maps of these areas?

I'm curious if there are officially designated "non-navigable" areas in the Pacific and other oceans, and if mission designers know about them and aim for them, and if so, into which one of them this mission aimed.

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Image from the linked tweet; click for full size

Image from Exp. 65/66's Thomas Pesquet's tweet:

So long DC1! After almost twenty years of service, instead of getting a medal First place medal, one of the @Space_Station's oldest @roscosmos modules got a little trip through the atmosphere. Shooting star #MissionAlpha https://flic.kr/p/2mdysX9

Answer 1

The usual spacecraft cemetery, known more formally as the South Pacific Ocean Uninhabited Area.

Wikipedia puts the general location at 43°34′48″S 142°43′12″W, and Roscosmos stated:

At 14:42 UTC, [MS-16/Pirs] entered the dense layers of the Earth's atmosphere, in 10 more minutes, the incombustible elements dropped into the spacecraft cemetery in the non-navigable part of the Pacific Ocean, 3.6 thousand km from the city of Wellington and 5.8 thousand km from the city of Santiago.

— Progress MS-16/Pirs spacecraft flight completed. July 26, 2021, 14:53 GMT. http://en.roscosmos.ru/22245/.

Plotting those ranges on gcmap.com with a red dot for the general location:

And it's a good match.

The non-navigable area is a reference to the pole of inaccessibility – neither term is literal. Wikipedia defines the latter as "the place in the ocean that is farthest from land" (shown by the blue dot/range).

The same on a globe:

_{They ought to name it Earth's bullseye.}