Reports Report 1570i (Event 1570-2014)

This report has been linked to the following event: Event 1570-2014
Observer
NameTony R
Experience Level1/5
RemarksAt first I thought it was a firework, then realized the trajectory was wrong (was not going up but across the sky) and there was no sound with the streak. It was also blue in color and very bright, especially towards the end when the whole sky lit up with a big burnout. It was at least 30-60 seconds after it disappeared before I heard what sounded like an explosion (like maybe it had hit the ground or a delayed sonic boom?)
Location
AddressBlairsville, GA
Latitude34° 55' 47.99'' N (34.93°)
Longitude 84° 3' 47.04'' W (-84.06°)
Elevation538.1m
Time and Duration
Local Date & Time2014-07-19 22:45 EDT
UT Date & Time2014-07-20 02:45 UT
Duration≈7.5s
Direction
Moving directionFrom left to right
Descent Angle90°
Moving
Facing azimuth246.75°
First azimuth95.03°
First elevation23°
Last azimuth339.63°
Last elevation23°
Brightness and color
Stellar Magnitude-16
ColorBlue, Light Blue, Light Yellow, White
Concurrent Sound
ObservationNo
Remarks-
Delayed Sound
ObservationYes
Remarkssounded like an explosion in the distance and there was a slight rumble vibration of the ground
Persistent train
ObservationNo
Duration-
Length-
Remarks-
Terminal flash
ObservationYes
Remarksbright explosion of light then nothing
Fragmentation
ObservationNo
Remarks-