Definition: In ancient times, the earth's interior was believed to be made up primarily of water, including magma and lava pools. The term "earthquake" referred to this state of affairs where ground beneath the Earth shakes violently. The Bible does not explicitly mention earthquakes but does describe natural phenomena that are considered common in areas like Egypt, Mesopotamia, and elsewhere during the Old Testament times. In these places, earthquakes are associated with the flooding of waters by the god Sihlahu, a form of water or air. These events were often caused by the movement of the Earth, but could also be natural occurrences such as volcanic eruptions that led to landslides in mountains and rivers overflowing their banks. They occurred when the ground shook so violently it would collapse, leaving behind rubble and destruction.