Ok so i Have not done Physics for about nine years, however here is my problem and from my limited amount of knowledge, my attempt to solve this problem.

Im writing a novel and could really do on checking details with people who have solid Physics background.

If anyone could help me confirm the following I would be grateful.

If an explosion, or an eruption of energy came from the moon controlled or otherwise, would we feel any effects on earth? (Vibrations etc Im assuming based on space having no air that no noise could be heard) Assuming the moon did not shatter or send debris but simply rotated so that the dark side (I know this term is not used to represent the far side of the moon, but im using it here) of the moon can be seen from earth, would anything happen? Again this is assuming the moon did not come closer or further away from the earth, just rotated and then returned back to its usual axis rotation and orbit, the only thing to change is that now we see the far side of the moon at all times instead of the side we have always seen.

As i understand it this angular momentum that will change by the moon will surely have to be matched by the earth (As the two are tidally locked) So i imagine the earth rotation would alter, except i have no idea how it would alter, what would change and if any negative weather patterns or geological upheavals would occur form it. Im sorry my knowledge is so limited but that is the best i can do.

Thanks in advance for the help.