DRIVERS SEAT BELT BUCKLE WAS CONNECTED WHEN A COLLISION OCCURRED AT AN INTERSECTION INVOLVING A HONDA ACCORD. UPON COLLISION, DRIVERS SEAT BELT STRAP BROKE THE TOP RING PORTION OF BUCKLE DURING DRIVER'S FORWARD MOMENTUM WHICH CAUSED THE METAL RING TO SNAP RELEASING THE SAFETY BELT STRAP AND FAILING TO ARREST DRIVER IN HIS SEAT AND CAUSING DRIVER TO IMPACT TOP DOOR FRAME WITH HEAD. BOTH AIR BAGS WERE DEPLOYED. DRIVER SUSTAINED MINOR SCALP CONTUSIONS AND MINOR SORE NECK AND SHOULDER PAIN. VALLEJO CA POLICE REPORT #15-06667 INSURANCE CLAIM (MERCURY INSURANCE):CLAIM NUMBER 2015 0015 003636 - 29 (CLAIM CURRENTLY IN PROGRESS)