How can I find out the settlement amount from a personal injury lawsuit?
Is it's not your lawsuit - then it's going to be tricky. Since it was a 'settlement' and not a court ordered 'judgement' - I doubt it's public record.
Ask the person who received the money. That's about the only person you will be able to find out from.
If you want to really be more informed about a peronal injury case, http://www.settlemyaccident.com/?c=215063 can help you. It's much better if you are more informed.