Re: Not only did the ship hit rocks, it tried to eat one:
Either the captain was deliberately buzzing the island for kicks (bad idea), or he deliberately tried to run a quickly flooding ship aground to make rescue easier (good idea).
According to your chart, the ship ran aground about 10 PM local time, so it should have been totally dark out at that latitude. If the track on the chart is correct, and if we assume a typical speed of 20 kts, it looks like he deviated from his planned course, (the one I would have steered through those waters)about an hour before the grounding.
Where did this map come from? Can it be trusted? This information could only be obtained from the ship's logs, and I don't think they've been recovered.