In conjunction with NK News, Colorado-based Allsource Analysis assisted in the investigation: Satellite Imagery Casts New Doubt on Pyongyang Building Collapse. Below follows the high resolution imagery used in this investigation, and their own analysis of it.

In assessing the DigitalGlobe GeoEye-1 image acquired on 17 May 2014 over the apartment collapse site, it looks like there is still some debris located on the site with a large crane and probable earth mover present.

From what we see, it appears the building fell close to straight down and a bit to the south, with some debris