I expect any claustrophobic person would NEVER seek a job as a miner.
BUT WHAT IF the tendency for claustrophobia has been within and has never been tested?
Would someone who has claustrophobia go mad? HOW WOULD YOU DO?
Claustrophobia is the fear of being in a confined or enclosed space.
The miners are unlikely to suffer from that, but the space available is not a threat anyway; and the mine galleries are probably fairly roomy, not tightly enclosed.
If they fear anything it could be the danger of flooding, possibly bad air, maybe hypothermia if the air temperature is low.
Contact has been made with them, and the rescue is well under way.