Yes, could very well be. Also, that coincides with an inbound airway, (R206) discussed in Gerry Soejatman's article in the Jakarta Globe.
The Jakarta Globe article you cite has this puzzling update:
Update: Wreckage found, spotted from the air. Ground SAR teams reported less than 1 kilometer from scene according to Detik.com article. Aircraft appears to be relatively intact but need ground teams to assess the extent of damage and seek out survivors inside. This report was made public by Deputy SAR Ops, Hadi L. SAR will try to evacuate survivors and the deceased by air if and when possible.
The report also contradicts previous rumors of aircraft found split in two and bodies strewn around the place! As I said before: Disgusting misinformation not welcomed anywhere.
Superjet Disappears South of Jakarta: Notes From an Aviation Consultant | The Jakarta Globe
I'd say the pictures tend to confirm the earlier rumors, not the report of the 'aircraft appears to be relatively intact' that Gerry relates as he preaches about the evils of 'disgusting misinformation'.