Complex sentence: The mutineers then variously settled on Pitcairn Island or in Tahiti and burned the "Bounty" off Pitcairn Island, to avoid detection and to prevent desertion.
Split into simpler sentences: The mutineers then variously settled on Pitcairn Island or in Tahiti. The "Bounty" was burned off Pitcairn Island to avoid detection and to prevent desertion.