It misses the surface of the Earth by 230,000 km. No threat there. And "50 metre – Tunguska size
Objects with a diameter of 50-60 meters pass closer to Earth than the Moon about once per week.(6) "

[link to survive2012.com]

10 m objects are much more common, too.

"Objects with diameters of 5-10 m impact the Earth's atmosphere approximately once per year, with as much energy as the atomic bomb dropped on Hiroshima, approximately 15 kilotonnes of TNT. These ordinarily explode in the upper atmosphere, and most or all of the solids are vaporized."