The Object by the Calbuco Eruption
In 22 to 23 April 2015, near Calbuco volcano, southern Chile, a pair of white lights, or a single bright object, hovering near the giant ash column before disappearing. This case file covers what witnesses reported, the official narrative, and a two-pass assessment with its evidence tier.
What did witnesses see at Calbuco volcano?
A pair of white lights, or a single bright object, hovering near the giant ash column before disappearing.
More footage and images of this sighting

What is the official explanation?
No statement on the object. A UFO researcher assessed it as a DJI Phantom 2 quadcopter from the four-light hover pattern; a Chilean network suggested a helicopter and reported a pilot mistaken for a UFO.
What did the witnesses think it was?
Uploaders and viewers presented it as a UFO drawn to the eruption.
Is the Object by the Calbuco Eruption real? The two-pass assessment
The drone and helicopter explanations both show a method and fit well, so this leans prosaic. The dramatic backdrop inflates the impression more than the object supports.
Sources
More cases from this region: UFO sightings in Chile
