Respuesta :
1. size
Magnitude refers to the size of something. Magnitude is used for things that are extremely large and widespread in size. In this sentence, magnitude is used to show that the size of the disaster is so big that it's "hard to imagine."
2. original source
Epicenter refers to the original source of the earthquake. An earthquake has a ripple effect like a pebble dropped into water. The epicenter is where the pebble falls and the ripples radiate out from.