People in Ancient America witness the destruction and help survivors of the disaster as they all make their way across mountain ranges to the city Bountiful and gather at the Temple to see the Lord.
9 And it came to pass that thus did the three days pass away. And it was in the morning, and the darkness dispersed from off the face of the land, and the earth did cease to tremble, and the rocks did cease to rend, and the dreadful groanings did cease, and all the tumultuous noises did pass away.
10 And the earth did cleave together again, that it stood; and the mourning, and the weeping, and the wailing of the people who were spared alive did cease; and their mourning was turned into joy, and their lamentations into the praise and thanksgiving unto the Lord Jesus Christ, their Redeemer.
11 And thus far were the scriptures fulfilled which had been spoken by the prophets.
12 And it was the more righteous part of the people who were saved, and it was they who received the prophets and stoned them not; and it was they who had not shed the blood of the saints, who were spared
https://www.churchofjesuschrist.org/study/scriptures/bofm/3-ne/10.9-12?lang=eng