I had a very clear view of the sky as my house sits high and is surrounded by windows. I was sitting on my porch. I THOUGHT it was a power outage as the light was incredible and went from one side of my house to the other. I could see the entire front yard with the brightness. IT felt very close. My cats took off just as the light started and hid under the bed. I knew there was something strange when the porch door and porch started to shake and then there was an incredible loud boom that went on for a few seconds. I looked online to see if there had been any earthquakes as i could not figure out what was happening.
Location
Address
Nelson, British Columbia (CA)
Latitude
49° 30' 15.34'' N (49.504261°)
Longitude
117° 16' 29.6'' W (-117.274889°)
Elevation
584.445m
Time and Duration
Local Date & Time
2017-09-04 22:13 PDT
UT Date & Time
2017-09-05 05:13 UT
Duration
≈1.5s
Direction
Moving direction
From left to right
Descent Angle
90°
Moving
Facing azimuth
264.14°
First azimuth
192.96°
First elevation
11°
Last azimuth
345.79°
Last elevation
23°
Brightness and color
Stellar Magnitude
-24
Color
Light Yellow, White
Concurrent Sound
Observation
Yes
Remarks
a few seconds after the huge bright light there was a very loud and long boom and a shaking (like an earthquake)
Delayed Sound
Observation
Yes
Remarks
as described above the sound did not happen when I saw the light