My Interpretation:
after a whole bunch load of notes, this is my take.
i kind of state the obvious sometimes, but i'm just describing the chart, and I'm probably going all over the place but I like to look at every *little* thing. it's late so some things might be a little weird.
querent = mercury
quesited (miners) = Sun, ruler of H4 and/or saturn, natural ruler of mines&miners.
Being Mercury in H4, it is apparent that you have a deep interest in the situation, and it is my suspicion that you might be connected to these people somehow, maybe it is a cousin on your father's side or some other little known relative could be one of the miners, and maybe it effects you on a subconscious level in particular, that's just a suspicion of mine.
Your significator is squaring mars, the ruler of the miner's radical 9th (I'm using it in this horary as a search for truth), and the ruler of your 12th (In this aspect I'm using it as "secrets"), I think this is emulating into the chart that you're frustrated at not knowing what actually happened.
The ruler of your thoughts is the moon & of whom is also your ruler of emotions, in the miner's radical third, so I see this as the chart showing you possibly of thinking of the rumors surrounding the situation or thinking about and being sympathetic to their family members.
The H4 planets:
I'm using venus to symbolise secrets (its your h12 intercept ruler) & sorrow as you see them, and also as the miner's radical third, which in this case I am using her as the news, combining this into "disdainful talk surrounding the incident", i.e.; the news.
Saturn is also here, it is in detriment in Leo, he is the ruler of your 8th house (hidden matters)... and the miner's radical sixth (illness). It is conjuncts the sun, which I'm just going to attribute to as your anguish for the miner's situation. He is squaring mars notably, the cusp ruler of your h12.
The Miner's H8 house of death (radical 11th):
So, the ruler of this by cusp is jupiter, who is powerfully dignified in sagittarius by house and triplicity and a hair away from term, and is in the miner's H4, it suggests the mine as cause of death, burying underneath earth perhaps. Uranus is positioned within their H8, suggesting that this was abrupt, unexpected. It would definitely seem so as jupiter is applying to uranus by square, and opposing mars--if we use mars as the intercept ruler of the miner's house of death that makes sense, maybe this is saying that the accident happened abruptly and quickly, or that some actually as well died quickly. If we used aries as intercept sign ruler of their h8, maybe fire was involved too, or with pisces, drowning.. in the most practical sense i.e. lack of air?
Now I'm trying to analyze why mars (ruler of their house of death) is in their H10 and your H1. For your H1 I'm just going to see this as your interest in their cause of death. For why it's in their h10 I'm actually going to pay attention to it because it's the cosign of their h10 so it is powerfully dignified, an association perhaps with death and their career (i.e. a risky occupation, death on the job). Mars is square saturn and I'm kinda scratching my head what the hell that could mean ? I am just going to say it's increasing the friction between it and saturn. I think mars is accidentally dignified by being within orb of the ascendant, adding to it's hostility.
If we look at the aspect table, we can see many of the significators are squaring eachother, opposing uranus & it just looks like they were doomed.
Judgment:
While on the job, there was most likely an explosion of some sort followed by a cave in, or vice versa ( this by use of pisces & aries influencing the the radical H8). With uranus in H8, it was certainly unexpected/sudden, and there was irresponsibility involved. I think the chart points to something violent and rapid. With the death ruler in the quesited H10 as I've said above it was probably a known risk/fear of the job that actually happened, such as the possibility of a particular something exploding if mishandled. Now that I think about it, with Mars squaring Uranus in the h8, I think irresponsibility perhaps by the company owning the mine or its workers definitely was a factor.
Judging the state of radical 4th (their h1), I don't think there will be any survivors, there is lack of "vitality".
The chart suggests that "truth" will not be found in the situation somehow, partly, maybe because the witnesses themselves are dead. The chart also suggests illusions of the truth maybe by media, perhaps even a cover up.. there certainly is a "secrets" theme going on.
I was re-looking at Saturn, which could also be represented by their wives, Jupiter their family members--I decided to use mercury as the company the miners were working for, there might be lawyers involved and suing (mercury is conjunct saturn) against the company, if we use radical h2 as a significator for the mining company's money, it is in the 3rd house (house of the miner's kindred), and joying there, so they might get money from the company. The moon is technically in fall, but she is also being 'received' by mars (the cause of death) which lessens that. perhaps this means the actual cause of death will allow them to get money.
I also think that somehow you might be affected like I said when I first started, and that's why I included you in the chart besides being the querent of course. It might be because you are related to the victims or simply because you have sympathy/empathy for the families of the miners.
One thing I don't get though is jupiter, a benefic, being dignified, that would at first be a good thing but it's opposing mars (death) and squaring uranus (accident). maybe there was something lucky that happened so far, or luck transformed into 'unluckiness'?
I dunno, I've put alot out there. LOL.
well, this is the picture the chart is painting to me.