I am watching a different documentary ("Drain the Sunken Pirate City") on Foxtel Go on the tragic destruction of Port Royal.  Similar I think is probably the video below from YouTube - I have not watched it all.  Port Royal is an example (rare) of liquefaction when sand and water mix in the shaking of an earthquake to form a consistency like quicksand and the destruction and tragedy it can cause.  The whole documentary would be very interesting for students of natural disasters - earthquake