welfare check in another state?

this girl i follow on tumblr posted a serious suicide note and my belief was she was going to kill herself so i was advised by a friend to call her police station. mind you i live in the north and she in the south and not in the same state so i called and they sent an officer on a welfare check. i got a call later from another sheriff asking for my info and if i could send an email to her with a screen shot of the blog and stuff. anyway she asked for my info and idk if i could of denied but i saw no reason to. but did i do the right thing? i may of jumped the gun but i may of made her get some help. anyway. i asked to be anonymous. the officer wont give out my info or anything will they? idk if i should of been anonymous or not.