Three abandoned buildings have collapsed from the earthquake according to the information so far. The building was in the downtown Athens.

No one was injured there.  However, a number of people have been injured from broken glasses and falling objects. Smaller damages were reported in the Parliament which has been evacuated for safety reasons.
Right after the earthquake in Athens there 20.000 phone calls per second(!) were made through the mobile phone networks. The latest aftershock is the most powerful so far, being 4.4 on the Richter scale.
According to the Euro Mediterranean Institute, the epicenter is located 34 klm NW of Athens and at a depth of 5 klm, close to the foot of Parnitha mountain.