At the time of Christ’s death, the Book of Mormon describes darkness and destruction among the Nephites and Lamanites. Due to the accounts of a darkness that could be felt and which lasted three days, LDS scholars and geologists have suggested that the event requires both an earthquake and volcanic eruption.
San Francisco residents were abruptly awakened one spring morning by an earthquake that lasted no more than a minute, but set off a chain of events that caused the city to burn for four straight days. The estimated 7.7- to 7.9-magnitude temblor not only broke natural gas mains, which sparked the fires, but also damaged water mains, leaving the fire department with limited resources to battle the blaze. By the time the fires were doused, flames had devoured more than 500 city blocks.