Earthquake in MissouriThe slave miners remembered that one day, the air of the cave had a gust and small rock fragments fell from the ceiling/walls. They had hurried outside in fear.
Outside, trees had been knocked over. This was all because a huge earthquake had occurred. These shocks have been estimated to be at a magnitude of 8.9 on the Richter Scale, which makes it very powerful. These shocks also caused the Mississippi River to flow backwards for 3 days. |