Quanti Mechanics

We know that there's alim on how fast information can move. But this gets confusing when we talk about entangled particles. You create two electrons, so that they have to have opposites spin. But you don't know which electron is spin up and which one is spinned down. As soon as you measure one to be spin up, for example, you know instantaneously that the other one has to be spin down. And that seems sort of non local,. because the particles can be entangled, but they can also be really far apart.