A lot of digging going on here
If you click on the maps, the date the picture was really made seems to show:
11/12/2014 was made on 06/15/2007
11/16/2016 was made on 04/17/2016
02/20/2014 was made on 09/03/2010 (overview) and 06/15/2007 (zoomed in)
The important question for me is not when (somewhere between 2007 and 2016) but the irrefutable proof of large scale digging on the island >>tunnels