What is the speed of action of quantum entanglement over distance? (Strange Universe series)

When subatomic particles interact, they gain something called quantum entanglement. You cannot fully describe one member of a quantum entangled group without describing all its members. This is true even when the entangled members of the group are spatially separated. If, for instance, you measure the spin of one electron and thus collapse its wave-state, you simultaneously collapse the wave-state of all its quantum entangled partners even without having measured them. The question is, if the individual members of the quantum entangled group are widely separated, how long does it take for the effect to pass from one to another. At what speed does quantum entanglement propagate?.

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This is a continuation in the Strange Universe series.
1—If Space is emptiness, what does gravity grab to bend it?
2—If photons have no mass, why are they affected by gravity?
3—What does it take to convert energy into mass?
4—How does the universe impose its fractal-like patterns of order on chaotic systems?
5—How small can the repetitive fractal features of nature get?
6—How can the most distant quasar be 28 Billion light years away?
7—Can nothing exist without the Universe?
8—How can order emerge out of chaos?
9—Where is the center of the Universe?
10—If CERN proves there are parallel universes, will you move?
11—If the universe expands at faster than the speed of light, does it begin to go back in time?
12—What is the expanding universe expanding into?
13—Big Bang Theory—How can you divide infinity into a single finite whole?
14—How would you answer this speed-of-light question?
15—What happens when the expansion of the Universe reaches the speed of light?
16—What’s your Strange Universe example to illustrate Sir Arthur Eddington’s quote?