A total of nine people had been detained but only seven were remanded in custody, according to the NTV news channel.
The 6.6 magnitude tremor brought 17 buildings down in the Aegean Sea region last Friday, hurting more than a thousand people.
Rescuers have been scrambling through the rubble in the hope of finding more survivors.
The quake generated a small tsunami that flooded the western Turkish town of Seferihisar and reached the Greek island of Samos where it killed two teenagers and injured 19 other people.