Planes by manhatten area very low-flying.?

Okay so i live in the small town of rutherford, new jersey, just ten miles from manhatten. These last few nights, ive heard really low flying planes going by. They start going aroun ten pm then stop around eleven. So every five or ten mnutes i would hear a very unusually low flying plane. It almost shakes my house. I live near newark and tittoboro airport, but too far that a plane would still be taking off, or about to land. Sometimes its scary, especially because Osama just died so al quaeda is attacking back. Even though im sure theyll never get a plane or a bomb into penn station in ny wich is their plan, its just kinda scary. Does anyone else hear the planes/know whatz going on?