I would need a more concrete discreption to see if this extreme fear is just exaggerated or if there is indeed violence in the case. Anyways, this is a sad situation, as I can tell from my own experience.
What often happens is that kids feel that there is an interconnection between the arguings themselves and the tasks they mean for their parents, such as gaining money, education etc., or that they just feel like they have the guilt for the disharmonies. Trust me, in most cases the reasons for arguings lie by no means on your side. They still love you, even though they don't love themselves anymore. At an age of 10, you may be too young to fully understand what's going on and why it's going on,
yet you can try to take some initiative. Listen more carefully to it, and ask them what's going on, because you
have a ♥♥♥♥ right to know it since it also effects your mental condition. You can ask them to cool down. Is it just bagatelles, or something really serious? Maybe it's just your presence that can remind your parents about that they have
you and your sibling(s) to hold themselves onto.
If the situation escalates, the same thing applies, but in practice things can sadly be else ... If it's just short things and they quickly cool down by themselves, there isn't really much to worry about (tartars and such). But if they constantly keep arguing for a longer time without getting forward in any way, and if it's a really severe case, look for yourself in the first case. If it's getting so far that you really feel the need to avoid their absence, try to contact third parties. There are indeed organizations who can give you help if your parents are violent against each other, or would have an addiction issue etc. Or try out what happens if you really approach them in a calm moment, saying that you dread them in these escalation moments. If they're also violent against you education-wise, don't tolerate this any longer, appeal the youth welfare office if it goes to far.
If it's really evident that their relation comes to an end (or has already), it's somewhat important for them to break up in peace and to put back any ♥♥♥♥ drives or negative emotions that can lead to a "rose war", for their sake of course and
especially for yours. A lot of it comes from emotions. I know that divorce is a hard fate for any kid in your age, but believe me, you're not alone with this and life goes on. I've cried a lot when my dad moved out for the first night to sleep in his new home. But just one day later I've already looked ahead. Even if the parent you keep living together with is also psychically wrecked by the divorce - a strong unit is better in the long term than this ♥♥♥♥ flaring up over and over.
Also check out
this topic whenever you're really upset or desparate. It makes wonders.