This kind of light-swarms have been spotted near and above manymany erupting vulcano's, in broad daylight and at night.
In the case of alien-crafts, they could be ?? balancing the energies, like calming down the turbulence and at the same time reinforce the structural make-up of the volcano-wands/chambers ... One could think to prevent the BIG outbreaks and disasters ...
IDK

To come back to the light-ball swarms around volcano's :
They could be ours, and they could be from "Others".
They could measure the goldparticles,
or they could eighter reinforce or stabalise, or trying to provoke and trigger ...
Many options.
I dont have the answer to that.


Tnx for your time and interrest
XX MZK


In regards UFO's around volcano's. think electromagnetic discharge and plasma. Energy source, jump start anyone. rken