Hi everyone! I'm making a mod and trying to script it so that when a giant throws an object near the player the earth shakes. I'm not sure if it is possible. If not then I guess I want to make the player stagger once the object hits the ground. Any suggestions?

KnockAreaEffect is probably the function you're looking for. Setting it to (1, 1500) shakes about a 70' radius or so. You just have to figure out the timing, like when the object hits the ground.. I'm not familiar enough with magic effects to know about that. But an onHit event may do the trick it it's a projectile or other actual object.

http://www.creationkit.com/ShakeCamera_-_Game might come in handy.

you can also use an explosion when the object comes in contact with the player/ground near the player.

there is already a explosion that is exactly what you would need for the effect