The Guardian has pulled in some Italian press reports. Interesting video as well. Times mentioned from sinking to flare don't make much sense. Keel partly withdrawn which is not that unusual. Best read yourself
Bodies of missing people recovered as experts and witnesses ponder fate of vessel struck by localised storm off Sicily
www.theguardian.com
15 survived. I find that odd from a fully sunken boat. It suggests time to get off. A flare would normally be fired immediately. It's doubtful that anyone would be on the open top deck. Pass really. The boat should have been capable of withstanding it. It's ocean going or is it?
Suppose I am wondering about a decision to abandon it which means things open to get people out. Normally it seems the crew would be expected to handle what comes along and make the boat safe. Panic maybe?
Best await the enquiry.