there was a book.

I don't understand, I just read it i UESPWiki... how could the Ministry of Truth crash? how could the Red Mountain explode?
Can someone explain that to me please O=

Bethesda needed the engine for Oblivion so Morrowind didn't have any weird physics anymore?

Certain passages in the http://www.imperial-library.info/content/morrowind-thirty-six-lessons-vivec allude to the fact that when the people of Morrowind cease to love Vivec, the asteroid Baar Dau was sent by Sheogorath to destroy Vivec, who promptly stopped it in time. It retained its original, supersonic velocity and when unfrozen crashed into Vvardenfell, causing Red Mountain to erupt and the inner sea to tsunami. Vvardenfell was engulfed with lava, most of morrowind was flooded and/or tsunami'd into submission. Then the Argonians came and got their long-awaited revenge.

Why did it unfreeze? The magic wore off?

And what sort of revenge for the Argonians?

It happened during Oblivion.

The oblivion crisis was not her doing but of another deadra, and as such the disappearence of Vivec was possibly not planned for.

Was that daedric trickery? Did Azura not so much care for Morrowind as she did that AlmSIVi disobeyed her, and used Lorkhans heart to achieve godhood?

Athynic summoned Azura. After the usual rituals by which the priest declared his faith in her powers and Azura agreed to do no harm to him, Nchylbar and a dozen of his students entered the summoning chamber, carrying with them a large box.

“As we see you in our land, Azura, you are the Goddess of the Dusk and Dawn and all the mysteries therein,” said Nchylbar, trying to appear as kindly and obsequious as he could be. “It is said that your knowledge is absolute.”

“So it is,” smiled the Daedra.

“You would know, for example, what is in this wooden box,” said Nchylbar.

Azura turned to Athynic, her brow furrowed. The priest was quick to explain, “Goddess, this Dwemer is a very wise and respected man. Believe me, please, the intention is not to mock your greatness, but to demonstrate it to this scientist and to the rest of his skeptical race. I have tried to explain your power to him, but his philosophy is such that he must see it demonstrated.”

“If I am to demonstrate my might in a way to bring the Dwemer race to understanding, it might have been a more impressive feat you would have me do,” growled Azura, and turned to look Nchylbar in the eyes. “There is a red-petalled flower in the box.”

Nchylbar did not smile or frown. He simply opened the box and revealed to all that it was empty.

When the students turned to look to Azura, she was gone. Only Athynic had seen the Goddess's expression before she vanished, and he could not speak, he was trembling so. A curse had fallen, he knew that truly, but even crueler was the knowledge of divine power that had been demonstrated.

I dont think the tales of Marobar Sul should be used in any way to understand either the Dwemer or the Daedra.

In Morrowind it is clearly stated that these are not Dwemer folk tales at all, rather Dunmer folk tales given a 'Dwemer' look by the author.

They are fairytales and should not be used to try and understand the Dwemer or Daedra.

Many of these cautionary or amusing tales exist in our own culture, but no student of mythology would seek a deeper understanding of Jesus by reading the tales of the brothers Grimm.

The novel "The Infernal City" seems to indicate it was several years after the Oblivion Crisis, with the events in the novel set forty-some years after the Crisis. I'd guess the moon fell within five years after the Oblivion Crisis, but maybe there's a timeline at the Imperial Library website. Vvardenfell became even more of a wasteland but we haven't been told yet how much of mainland Morrowind was destroyed. We can probably assume the majority of Morrowind's population was either killed or fled into diaspora.