The Beirut Blast - raises some questions

Savage blow to hit Beirut.  RIP to all who perished.

This photo (as seen on One News tonight) raises a few questions though.

Supposing it was from a geostationary satellite.

1. A fluke it was there in the first place???
2.  Is it common for satellites to to be used either Military or Civilian over key areas which askes 3.  how many satellites orbit the atmosphere?? (Traffic Jam)
4. Why are Spy Satellites Camera technology not available for commercial use.