This morning, August 1, 2013 at 02:21:55 UT, a small meteoroid has impacted the Moon's surface. The kinetic energy transformed by the impact into thermal energy also caused a short  flash of light that was detected by three telescopes. 

We used Calsky© (http://www.calsky.com/) to search for artificial satellites in the lineof-sight. No satellites within a circle of 3° diameter were found.

The simultaneity of the bright flash and the same position on the lunar surface indicates it is an impact. 

Detected lunar impact occurred on August 1 2013 at 02:21:55 UT imaged by Raffaello Lena (Italy),   Andrea Manna and Stefano Sposetti (Switzerland)

Superimposed frame of the detected flash
coordinates 73° E +/- 4° and 27° N +/- 3°