Complex sentence: In the event, however, the shooting star passes by the Earth, though a piece of it, a meteorite, lands in the arctic ocean, causing an earthquake that lasts a mere few seconds.
Split into simpler sentences: In the event, however, the shooting star does not collide with the Earth, but passes by it. A piece of it, a meteorite, lands in the arctic ocean, causing an earthquake that lasts a mere few seconds.