Magnetism wreaks havoc on the Swan, Pierre Chang's hand is crushed, Phil is speared

After Jack drops the bomb and nothing happens, everyone suddenly hears the same ominous noise that started when the button was not pushed at the Swan in the season two finale. The drill rigging starts shaking a steam pours out of the hole. The pocket of magnetism starts to pull metal objects down the hole including guns and tools before it begins to pulls the drill tower down.

The tower falls, crushing Pierre Chang's hand. A tool box hits Jack in the back of the head, knocking him to the ground. Miles rushes over to help his father by lifting the beam which frees Pierre's hand. Miles tells him to get as far away from the site as possible. Radzinsky and some of the other remaining Dharma workers try to escape in a jeep, but the magnetism flips it over towards the hole.

Phil grabs a stray gun and is about to take his revenge on Sawyer when some metal scaffolding falls on top of Phil. Some metal rebar is flies at Phil piercing his chest, killing him.

Pierre's hand being crushed seems to answer the question of why his left hand seems immobile is some of the orientation videos.

It was also good to see Phil die after he struck Juliet in "Follow the Leader." He got a very gruesome death fitting for his character.