Not necessarily. Keep in mind, this is a more simplified continuity. There is only one Makuta this time, and there may not even be an OoMN. The other pieces may've landed on other worlds and some of the Matoran may've survived.
So judging by the explosion, the Northern Continent, Artahka, and Karda Nui is destroyed.
But meanwhile, some part of Karzanhi is still intact but some regions of said island is destroyed as well?
Map of the explosion for reference:
This somewhat reminds me of the Prototype Giant Robot, but this just makes me feel somehow bad for Makuta. All of those years he made in preparations to make him fall asleep and take over the Great Spirit had been ruined by his own hands. Not realizing what could go wrong, not wondering if it could go haywire or having a second thought of doubt.
Mata Nui showed Makuta a vision. In this continuity, the Great Spirit Robot exploded when Makuta shut it down. Only its head and a hand made it to the planet's surface.
I said most of this in the description.