Final answer:
The given information does not provide specifics about Zane reaching the edge of a volcano. For calculations about travel time, additional details such as speed and distance are necessary. An analogous expedition by Lieutenant Zebulon Pike took a week to cover 100 miles.
Step-by-step explanation:
The question does not provide specific information about an individual named Zane reaching the edge of a volcano. It includes various scenarios involving volcanic activity and observations made by individuals from historical eruptions to more controlled settings, such as a hiker witnessing a rock fall. To calculate how long it took for someone like Zane to reach the edge of a volcano, we would need additional information, such as starting distance, travel speed, and the mode of transportation used.
If we consider Lieutenant Zebulon Pike's expedition as an analogous situation, it took his party a week to cover the 100 miles to Pike's Peak. However, there is no direct reference to determine the time it took for Zane to reach the edge of the volcano.