Moving is a major life stressor for grownups and children, it can take up to 6 months to adjust. She is more than likely reacting to that. She is very angry, and being only 21 months she can't articulate "I'm mad that we moved, my room is changed, I don't like it!"
That said you don't have to tolerate her behavior and there are ways to modify it, while helping her to feel secure. Since she's getting up earlier you might try putting her to bed 30 minutes to an hour later. Hold her and cuddle her as much as you can during the day and early evening. Work on getting her relaxed for bed, establish a good bedtime routine. Dim the lights, turn the TV off, darken her room, slow everything down, speak in whispers while you give her a warm bath, rub down with nighttime lotion, put on her pj's and read a book or two. When you put her down let her know it's time to sleep, no screaming or ripping off clothes. Put her diaper on backwards, duct tape it starting at the top back and ending there, a onesie over it backwards (to make it more difficult to take off), then her pj's, preferably a blanket sleeper on backwards so she doesn't need blankets, thus can't throw them. Cut the feet off, she can wear socks. And move her crib so she can't reach the drapes. If she's near drapes or blinds she can strangle in the cords or the drapes falling on her. And if she can't reach them she can't yank them down. At naps don't give her blankets but do the backwards clothing.
And once you put her down go to her in 5 minute increasing increments, 5, 10, then 15, and so on. Don't turn on the lights (at night), go to her, don't pick her up, and say "It's time to sleep" matter of fact, lay her down and leave. In 10 minutes go in, say nothing from here out, don't pick her up, lay her down and leave, again in 15 minutes, until she's out. By letting her scream for 2 to 3 hours before going to her for naps you're reinforcing her insecurity and teaching her to scream until you come get her, if she's not asleep in an hour for a nap she isn't going to sleep. At night she doesn't want to feel abandoned and going to her at 5, 10, 15 minutes, etc., will reassure her you're still there while teaching her that her crib means it's time to sleep.
Yes, she gets madder when you go to her during her fits, which is why you don't pick her up and stay matter of fact. Like I said, she has a lot of anger. She has very little control in her life other than eating, sleeping and in a few months going potty. Help her get over her anger while not rewarding her behavior or potty training will be a nightmare...