what astronomical bodies would most likely be the largest?
There is no item on the list of choices that you posted with your question that would be likely to do that.
No earthquake having solely terrestrial causes can be stronger than 10 on the Richter scale, because no type of rock is strong enough to store that much energy without breaking before then (and thus causing a smaller earthquake). The strongest earthquake ever recorded so far was a 9.5 earthquake. In principle larger earthquakes could be caused by impacts with very big asteroids or comets, but no impacts that large have occurred in recorded history.
It would more likely be kilometers. One kilometer is 0.621 mile.
they would have been slaughtered.
Earthquake
low or medium
Geographers are most likely to study landforms and their locations.
yes because there in earthquake perimeter
Any that are built in an earthquake area if you don't want them to fall. And any that would not stand on their own in an earthquake.
The Mercalli scale would most likely be used to measure earthquake damage.
The Mercalli scale would most likely be used to measure earthquake damage.
wherever there is a fault line
Landslide.
onew
Along other plate boundriesAn earthquake would least likely happen in the middle of the continent away from the ocean because there is no way for another plates to push and rub up against it causing the earthquake.
A thunderstorm would never result from an earthquake. Earthquakes can cause fires by breaking gas lines and electrical wires, but there is no mechanism by which an earthquake could cause a thunderstorm.